51449580

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1$

素因数の和:390

約数の個数: 240

約数和(自身を含む): 199214400

約数和(自身を除く): 147764820

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 39, 42, 45, 52, 54, 60, 63, 65, 70, 78, 81, 84, 90, 91, 105, 108, 117, 126, 130, 135, 140, 156, 162, 180, 182, 189, 195, 210, 234, 252, 260, 270, 273, 315, 324, 349, 351, 364, 378, 390, 405, 420, 455, 468, 540, 546, 567, 585, 630, 698, 702, 756, 780, 810, 819, 910, 945, 1047, 1053, 1092, 1134, 1170, 1260, 1365, 1396, 1404, 1620, 1638, 1745, 1755, 1820, 1890, 2094, 2106, 2268, 2340, 2443, 2457, 2730, 2835, 3141, 3276, 3490, 3510, 3780, 4095, 4188, 4212, 4537, 4886, 4914, 5235, 5265, 5460, 5670, 6282, 6980, 7020, 7329, 7371, 8190, 9074, 9423, 9772, 9828, 10470, 10530, 11340, 12215, 12285, 12564, 13611, 14658, 14742, 15705, 16380, 18148, 18846, 20940, 21060, 21987, 22685, 24430, 24570, 27222, 28269, 29316, 29484, 31410, 31759, 36645, 36855, 37692, 40833, 43974, 45370, 47115, 48860, 49140, 54444, 56538, 62820, 63518, 65961, 68055, 73290, 73710, 81666, 87948, 90740, 94230, 95277, 109935, 113076, 122499, 127036, 131922, 136110, 141345, 146580, 147420, 158795, 163332, 188460, 190554, 197883, 204165, 219870, 244998, 263844, 272220, 282690, 285831, 317590, 329805, 367497, 381108, 395766, 408330, 439740, 476385, 489996, 565380, 571662, 612495, 635180, 659610, 734994, 791532, 816660, 857493, 952770, 989415, 1143324, 1224990, 1319220, 1429155, 1469988, 1714986, 1837485, 1905540, 1978830, 2449980, 2572479, 2858310, 3429972, 3674970, 3957660, 4287465, 5144958, 5716620, 7349940, 8574930, 10289916, 12862395, 17149860, 25724790, 51449580]

約数ペア:

[(1, 51449580), (2, 25724790), (3, 17149860), (4, 12862395), (5, 10289916), (6, 8574930), (7, 7349940), (9, 5716620), (10, 5144958), (12, 4287465), (13, 3957660), (14, 3674970), (15, 3429972), (18, 2858310), (20, 2572479), (21, 2449980), (26, 1978830), (27, 1905540), (28, 1837485), (30, 1714986), (35, 1469988), (36, 1429155), (39, 1319220), (42, 1224990), (45, 1143324), (52, 989415), (54, 952770), (60, 857493), (63, 816660), (65, 791532), (70, 734994), (78, 659610), (81, 635180), (84, 612495), (90, 571662), (91, 565380), (105, 489996), (108, 476385), (117, 439740), (126, 408330), (130, 395766), (135, 381108), (140, 367497), (156, 329805), (162, 317590), (180, 285831), (182, 282690), (189, 272220), (195, 263844), (210, 244998), (234, 219870), (252, 204165), (260, 197883), (270, 190554), (273, 188460), (315, 163332), (324, 158795), (349, 147420), (351, 146580), (364, 141345), (378, 136110), (390, 131922), (405, 127036), (420, 122499), (455, 113076), (468, 109935), (540, 95277), (546, 94230), (567, 90740), (585, 87948), (630, 81666), (698, 73710), (702, 73290), (756, 68055), (780, 65961), (810, 63518), (819, 62820), (910, 56538), (945, 54444), (1047, 49140), (1053, 48860), (1092, 47115), (1134, 45370), (1170, 43974), (1260, 40833), (1365, 37692), (1396, 36855), (1404, 36645), (1620, 31759), (1638, 31410), (1745, 29484), (1755, 29316), (1820, 28269), (1890, 27222), (2094, 24570), (2106, 24430), (2268, 22685), (2340, 21987), (2443, 21060), (2457, 20940), (2730, 18846), (2835, 18148), (3141, 16380), (3276, 15705), (3490, 14742), (3510, 14658), (3780, 13611), (4095, 12564), (4188, 12285), (4212, 12215), (4537, 11340), (4886, 10530), (4914, 10470), (5235, 9828), (5265, 9772), (5460, 9423), (5670, 9074), (6282, 8190), (6980, 7371), (7020, 7329)]