280345380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{43}}^2$

素因数の和:143

約数の個数: 216

約数和(自身を含む): 969337152

約数和(自身を除く): 688991772

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 43, 57, 60, 70, 76, 84, 86, 95, 105, 114, 129, 133, 140, 172, 190, 210, 215, 228, 258, 266, 285, 301, 361, 380, 399, 420, 430, 516, 532, 570, 602, 645, 665, 722, 798, 817, 860, 903, 1083, 1140, 1204, 1290, 1330, 1444, 1505, 1596, 1634, 1805, 1806, 1849, 1995, 2166, 2451, 2527, 2580, 2660, 3010, 3268, 3610, 3612, 3698, 3990, 4085, 4332, 4515, 4902, 5054, 5415, 5547, 5719, 6020, 7220, 7396, 7581, 7980, 8170, 9030, 9245, 9804, 10108, 10830, 11094, 11438, 12255, 12635, 12943, 15162, 15523, 16340, 17157, 18060, 18490, 21660, 22188, 22876, 24510, 25270, 25886, 27735, 28595, 30324, 31046, 34314, 35131, 36980, 37905, 38829, 46569, 49020, 50540, 51772, 55470, 57190, 62092, 64715, 68628, 70262, 75810, 77615, 77658, 85785, 93138, 105393, 108661, 110940, 114380, 129430, 140524, 151620, 155230, 155316, 171570, 175655, 186276, 194145, 210786, 217322, 232845, 245917, 258860, 310460, 325983, 343140, 351310, 388290, 421572, 434644, 465690, 491834, 526965, 543305, 651966, 667489, 702620, 737751, 776580, 931380, 983668, 1053930, 1086610, 1229585, 1303932, 1334978, 1475502, 1629915, 2002467, 2107860, 2173220, 2459170, 2669956, 2951004, 3259830, 3337445, 3688755, 4004934, 4672423, 4918340, 6519660, 6674890, 7377510, 8009868, 9344846, 10012335, 13349780, 14017269, 14755020, 18689692, 20024670, 23362115, 28034538, 40049340, 46724230, 56069076, 70086345, 93448460, 140172690, 280345380]

約数ペア:

[(1, 280345380), (2, 140172690), (3, 93448460), (4, 70086345), (5, 56069076), (6, 46724230), (7, 40049340), (10, 28034538), (12, 23362115), (14, 20024670), (15, 18689692), (19, 14755020), (20, 14017269), (21, 13349780), (28, 10012335), (30, 9344846), (35, 8009868), (38, 7377510), (42, 6674890), (43, 6519660), (57, 4918340), (60, 4672423), (70, 4004934), (76, 3688755), (84, 3337445), (86, 3259830), (95, 2951004), (105, 2669956), (114, 2459170), (129, 2173220), (133, 2107860), (140, 2002467), (172, 1629915), (190, 1475502), (210, 1334978), (215, 1303932), (228, 1229585), (258, 1086610), (266, 1053930), (285, 983668), (301, 931380), (361, 776580), (380, 737751), (399, 702620), (420, 667489), (430, 651966), (516, 543305), (532, 526965), (570, 491834), (602, 465690), (645, 434644), (665, 421572), (722, 388290), (798, 351310), (817, 343140), (860, 325983), (903, 310460), (1083, 258860), (1140, 245917), (1204, 232845), (1290, 217322), (1330, 210786), (1444, 194145), (1505, 186276), (1596, 175655), (1634, 171570), (1805, 155316), (1806, 155230), (1849, 151620), (1995, 140524), (2166, 129430), (2451, 114380), (2527, 110940), (2580, 108661), (2660, 105393), (3010, 93138), (3268, 85785), (3610, 77658), (3612, 77615), (3698, 75810), (3990, 70262), (4085, 68628), (4332, 64715), (4515, 62092), (4902, 57190), (5054, 55470), (5415, 51772), (5547, 50540), (5719, 49020), (6020, 46569), (7220, 38829), (7396, 37905), (7581, 36980), (7980, 35131), (8170, 34314), (9030, 31046), (9245, 30324), (9804, 28595), (10108, 27735), (10830, 25886), (11094, 25270), (11438, 24510), (12255, 22876), (12635, 22188), (12943, 21660), (15162, 18490), (15523, 18060), (16340, 17157)]