15981030

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:215

約数の個数: 128

約数和(自身を含む): 47779200

約数和(自身を除く): 31798170

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 29, 30, 39, 45, 54, 58, 65, 78, 87, 90, 117, 130, 135, 145, 157, 174, 195, 234, 261, 270, 290, 314, 351, 377, 390, 435, 471, 522, 585, 702, 754, 783, 785, 870, 942, 1131, 1170, 1305, 1413, 1566, 1570, 1755, 1885, 2041, 2262, 2355, 2610, 2826, 3393, 3510, 3770, 3915, 4082, 4239, 4553, 4710, 5655, 6123, 6786, 7065, 7830, 8478, 9106, 10179, 10205, 11310, 12246, 13659, 14130, 16965, 18369, 20358, 20410, 21195, 22765, 27318, 30615, 33930, 36738, 40977, 42390, 45530, 50895, 55107, 59189, 61230, 68295, 81954, 91845, 101790, 110214, 118378, 122931, 136590, 177567, 183690, 204885, 245862, 275535, 295945, 355134, 409770, 532701, 551070, 591890, 614655, 887835, 1065402, 1229310, 1598103, 1775670, 2663505, 3196206, 5327010, 7990515, 15981030]

約数ペア:

[(1, 15981030), (2, 7990515), (3, 5327010), (5, 3196206), (6, 2663505), (9, 1775670), (10, 1598103), (13, 1229310), (15, 1065402), (18, 887835), (26, 614655), (27, 591890), (29, 551070), (30, 532701), (39, 409770), (45, 355134), (54, 295945), (58, 275535), (65, 245862), (78, 204885), (87, 183690), (90, 177567), (117, 136590), (130, 122931), (135, 118378), (145, 110214), (157, 101790), (174, 91845), (195, 81954), (234, 68295), (261, 61230), (270, 59189), (290, 55107), (314, 50895), (351, 45530), (377, 42390), (390, 40977), (435, 36738), (471, 33930), (522, 30615), (585, 27318), (702, 22765), (754, 21195), (783, 20410), (785, 20358), (870, 18369), (942, 16965), (1131, 14130), (1170, 13659), (1305, 12246), (1413, 11310), (1566, 10205), (1570, 10179), (1755, 9106), (1885, 8478), (2041, 7830), (2262, 7065), (2355, 6786), (2610, 6123), (2826, 5655), (3393, 4710), (3510, 4553), (3770, 4239), (3915, 4082)]