51793980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:328

約数の個数: 144

約数和(自身を含む): 171601920

約数和(自身を除く): 119807940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 79, 84, 98, 105, 140, 147, 158, 196, 210, 223, 237, 245, 294, 316, 395, 420, 446, 474, 490, 553, 588, 669, 735, 790, 892, 948, 980, 1106, 1115, 1185, 1338, 1470, 1561, 1580, 1659, 2212, 2230, 2370, 2676, 2765, 2940, 3122, 3318, 3345, 3871, 4460, 4683, 4740, 5530, 6244, 6636, 6690, 7742, 7805, 8295, 9366, 10927, 11060, 11613, 13380, 15484, 15610, 16590, 17617, 18732, 19355, 21854, 23226, 23415, 31220, 32781, 33180, 35234, 38710, 43708, 46452, 46830, 52851, 54635, 58065, 65562, 70468, 77420, 88085, 93660, 105702, 109270, 116130, 123319, 131124, 163905, 176170, 211404, 218540, 232260, 246638, 264255, 327810, 352340, 369957, 493276, 528510, 616595, 655620, 739914, 863233, 1057020, 1233190, 1479828, 1726466, 1849785, 2466380, 2589699, 3452932, 3699570, 4316165, 5179398, 7399140, 8632330, 10358796, 12948495, 17264660, 25896990, 51793980]

約数ペア:

[(1, 51793980), (2, 25896990), (3, 17264660), (4, 12948495), (5, 10358796), (6, 8632330), (7, 7399140), (10, 5179398), (12, 4316165), (14, 3699570), (15, 3452932), (20, 2589699), (21, 2466380), (28, 1849785), (30, 1726466), (35, 1479828), (42, 1233190), (49, 1057020), (60, 863233), (70, 739914), (79, 655620), (84, 616595), (98, 528510), (105, 493276), (140, 369957), (147, 352340), (158, 327810), (196, 264255), (210, 246638), (223, 232260), (237, 218540), (245, 211404), (294, 176170), (316, 163905), (395, 131124), (420, 123319), (446, 116130), (474, 109270), (490, 105702), (553, 93660), (588, 88085), (669, 77420), (735, 70468), (790, 65562), (892, 58065), (948, 54635), (980, 52851), (1106, 46830), (1115, 46452), (1185, 43708), (1338, 38710), (1470, 35234), (1561, 33180), (1580, 32781), (1659, 31220), (2212, 23415), (2230, 23226), (2370, 21854), (2676, 19355), (2765, 18732), (2940, 17617), (3122, 16590), (3318, 15610), (3345, 15484), (3871, 13380), (4460, 11613), (4683, 11060), (4740, 10927), (5530, 9366), (6244, 8295), (6636, 7805), (6690, 7742)]