178708920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1181}}^1$

素因数の和:1305

約数の個数: 128

約数和(自身を含む): 583813440

約数和(自身を除く): 405104520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 97, 104, 120, 130, 156, 194, 195, 260, 291, 312, 388, 390, 485, 520, 582, 776, 780, 970, 1164, 1181, 1261, 1455, 1560, 1940, 2328, 2362, 2522, 2910, 3543, 3783, 3880, 4724, 5044, 5820, 5905, 6305, 7086, 7566, 9448, 10088, 11640, 11810, 12610, 14172, 15132, 15353, 17715, 18915, 23620, 25220, 28344, 30264, 30706, 35430, 37830, 46059, 47240, 50440, 61412, 70860, 75660, 76765, 92118, 114557, 122824, 141720, 151320, 153530, 184236, 229114, 230295, 307060, 343671, 368472, 458228, 460590, 572785, 614120, 687342, 916456, 921180, 1145570, 1374684, 1489241, 1718355, 1842360, 2291140, 2749368, 2978482, 3436710, 4467723, 4582280, 5956964, 6873420, 7446205, 8935446, 11913928, 13746840, 14892410, 17870892, 22338615, 29784820, 35741784, 44677230, 59569640, 89354460, 178708920]

約数ペア:

[(1, 178708920), (2, 89354460), (3, 59569640), (4, 44677230), (5, 35741784), (6, 29784820), (8, 22338615), (10, 17870892), (12, 14892410), (13, 13746840), (15, 11913928), (20, 8935446), (24, 7446205), (26, 6873420), (30, 5956964), (39, 4582280), (40, 4467723), (52, 3436710), (60, 2978482), (65, 2749368), (78, 2291140), (97, 1842360), (104, 1718355), (120, 1489241), (130, 1374684), (156, 1145570), (194, 921180), (195, 916456), (260, 687342), (291, 614120), (312, 572785), (388, 460590), (390, 458228), (485, 368472), (520, 343671), (582, 307060), (776, 230295), (780, 229114), (970, 184236), (1164, 153530), (1181, 151320), (1261, 141720), (1455, 122824), (1560, 114557), (1940, 92118), (2328, 76765), (2362, 75660), (2522, 70860), (2910, 61412), (3543, 50440), (3783, 47240), (3880, 46059), (4724, 37830), (5044, 35430), (5820, 30706), (5905, 30264), (6305, 28344), (7086, 25220), (7566, 23620), (9448, 18915), (10088, 17715), (11640, 15353), (11810, 15132), (12610, 14172)]