291675280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:249

約数の個数: 160

約数和(自身を含む): 769950720

約数和(自身を除く): 478275440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 83, 104, 109, 124, 130, 155, 166, 208, 218, 248, 260, 310, 332, 403, 415, 436, 496, 520, 545, 620, 664, 806, 830, 872, 1040, 1079, 1090, 1240, 1328, 1417, 1612, 1660, 1744, 2015, 2158, 2180, 2480, 2573, 2834, 3224, 3320, 3379, 4030, 4316, 4360, 5146, 5395, 5668, 6448, 6640, 6758, 7085, 8060, 8632, 8720, 9047, 10292, 10790, 11336, 12865, 13516, 14170, 16120, 16895, 17264, 18094, 20584, 21580, 22672, 25730, 27032, 28340, 32240, 33449, 33790, 36188, 41168, 43160, 43927, 45235, 51460, 54064, 56680, 66898, 67580, 72376, 86320, 87854, 90470, 102920, 113360, 117611, 133796, 135160, 144752, 167245, 175708, 180940, 205840, 219635, 235222, 267592, 270320, 280457, 334490, 351416, 361880, 439270, 470444, 535184, 560914, 588055, 668980, 702832, 723760, 878540, 940888, 1121828, 1176110, 1337960, 1402285, 1757080, 1881776, 2243656, 2352220, 2675920, 2804570, 3514160, 3645941, 4487312, 4704440, 5609140, 7291882, 9408880, 11218280, 14583764, 18229705, 22436560, 29167528, 36459410, 58335056, 72918820, 145837640, 291675280]

約数ペア:

[(1, 291675280), (2, 145837640), (4, 72918820), (5, 58335056), (8, 36459410), (10, 29167528), (13, 22436560), (16, 18229705), (20, 14583764), (26, 11218280), (31, 9408880), (40, 7291882), (52, 5609140), (62, 4704440), (65, 4487312), (80, 3645941), (83, 3514160), (104, 2804570), (109, 2675920), (124, 2352220), (130, 2243656), (155, 1881776), (166, 1757080), (208, 1402285), (218, 1337960), (248, 1176110), (260, 1121828), (310, 940888), (332, 878540), (403, 723760), (415, 702832), (436, 668980), (496, 588055), (520, 560914), (545, 535184), (620, 470444), (664, 439270), (806, 361880), (830, 351416), (872, 334490), (1040, 280457), (1079, 270320), (1090, 267592), (1240, 235222), (1328, 219635), (1417, 205840), (1612, 180940), (1660, 175708), (1744, 167245), (2015, 144752), (2158, 135160), (2180, 133796), (2480, 117611), (2573, 113360), (2834, 102920), (3224, 90470), (3320, 87854), (3379, 86320), (4030, 72376), (4316, 67580), (4360, 66898), (5146, 56680), (5395, 54064), (5668, 51460), (6448, 45235), (6640, 43927), (6758, 43160), (7085, 41168), (8060, 36188), (8632, 33790), (8720, 33449), (9047, 32240), (10292, 28340), (10790, 27032), (11336, 25730), (12865, 22672), (13516, 21580), (14170, 20584), (16120, 18094), (16895, 17264)]