18689580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1$

素因数の和:205

約数の個数: 216

約数和(自身を含む): 71456112

約数和(自身を除く): 52766532

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 49, 52, 60, 63, 65, 70, 78, 84, 90, 91, 98, 105, 117, 126, 130, 140, 147, 156, 163, 180, 182, 195, 196, 210, 234, 245, 252, 260, 273, 294, 315, 326, 364, 390, 420, 441, 455, 468, 489, 490, 546, 585, 588, 630, 637, 652, 735, 780, 815, 819, 882, 910, 978, 980, 1092, 1141, 1170, 1260, 1274, 1365, 1467, 1470, 1630, 1638, 1764, 1820, 1911, 1956, 2119, 2205, 2282, 2340, 2445, 2548, 2730, 2934, 2940, 3185, 3260, 3276, 3423, 3822, 4095, 4238, 4410, 4564, 4890, 5460, 5705, 5733, 5868, 6357, 6370, 6846, 7335, 7644, 7987, 8190, 8476, 8820, 9555, 9780, 10269, 10595, 11410, 11466, 12714, 12740, 13692, 14670, 14833, 15974, 16380, 17115, 19071, 19110, 20538, 21190, 22820, 22932, 23961, 25428, 28665, 29340, 29666, 31785, 31948, 34230, 38142, 38220, 39935, 41076, 42380, 44499, 47922, 51345, 57330, 59332, 63570, 68460, 71883, 74165, 76284, 79870, 88998, 95355, 95844, 102690, 103831, 114660, 119805, 127140, 133497, 143766, 148330, 159740, 177996, 190710, 205380, 207662, 222495, 239610, 266994, 287532, 296660, 311493, 359415, 381420, 415324, 444990, 479220, 519155, 533988, 622986, 667485, 718830, 889980, 934479, 1038310, 1245972, 1334970, 1437660, 1557465, 1868958, 2076620, 2669940, 3114930, 3737916, 4672395, 6229860, 9344790, 18689580]

約数ペア:

[(1, 18689580), (2, 9344790), (3, 6229860), (4, 4672395), (5, 3737916), (6, 3114930), (7, 2669940), (9, 2076620), (10, 1868958), (12, 1557465), (13, 1437660), (14, 1334970), (15, 1245972), (18, 1038310), (20, 934479), (21, 889980), (26, 718830), (28, 667485), (30, 622986), (35, 533988), (36, 519155), (39, 479220), (42, 444990), (45, 415324), (49, 381420), (52, 359415), (60, 311493), (63, 296660), (65, 287532), (70, 266994), (78, 239610), (84, 222495), (90, 207662), (91, 205380), (98, 190710), (105, 177996), (117, 159740), (126, 148330), (130, 143766), (140, 133497), (147, 127140), (156, 119805), (163, 114660), (180, 103831), (182, 102690), (195, 95844), (196, 95355), (210, 88998), (234, 79870), (245, 76284), (252, 74165), (260, 71883), (273, 68460), (294, 63570), (315, 59332), (326, 57330), (364, 51345), (390, 47922), (420, 44499), (441, 42380), (455, 41076), (468, 39935), (489, 38220), (490, 38142), (546, 34230), (585, 31948), (588, 31785), (630, 29666), (637, 29340), (652, 28665), (735, 25428), (780, 23961), (815, 22932), (819, 22820), (882, 21190), (910, 20538), (978, 19110), (980, 19071), (1092, 17115), (1141, 16380), (1170, 15974), (1260, 14833), (1274, 14670), (1365, 13692), (1467, 12740), (1470, 12714), (1630, 11466), (1638, 11410), (1764, 10595), (1820, 10269), (1911, 9780), (1956, 9555), (2119, 8820), (2205, 8476), (2282, 8190), (2340, 7987), (2445, 7644), (2548, 7335), (2730, 6846), (2934, 6370), (2940, 6357), (3185, 5868), (3260, 5733), (3276, 5705), (3423, 5460), (3822, 4890), (4095, 4564), (4238, 4410)]