89895040

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:270

約数の個数: 128

約数和(自身を含む): 232657920

約数和(自身を除く): 142762880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 46, 62, 64, 80, 92, 115, 124, 128, 155, 160, 184, 197, 230, 248, 310, 320, 368, 394, 460, 496, 620, 640, 713, 736, 788, 920, 985, 992, 1240, 1426, 1472, 1576, 1840, 1970, 1984, 2480, 2852, 2944, 3152, 3565, 3680, 3940, 3968, 4531, 4960, 5704, 6107, 6304, 7130, 7360, 7880, 9062, 9920, 11408, 12214, 12608, 14260, 14720, 15760, 18124, 19840, 22655, 22816, 24428, 25216, 28520, 30535, 31520, 36248, 45310, 45632, 48856, 57040, 61070, 63040, 72496, 90620, 91264, 97712, 114080, 122140, 126080, 140461, 144992, 181240, 195424, 228160, 244280, 280922, 289984, 362480, 390848, 456320, 488560, 561844, 579968, 702305, 724960, 781696, 977120, 1123688, 1404610, 1449920, 1954240, 2247376, 2809220, 2899840, 3908480, 4494752, 5618440, 8989504, 11236880, 17979008, 22473760, 44947520, 89895040]

約数ペア:

[(1, 89895040), (2, 44947520), (4, 22473760), (5, 17979008), (8, 11236880), (10, 8989504), (16, 5618440), (20, 4494752), (23, 3908480), (31, 2899840), (32, 2809220), (40, 2247376), (46, 1954240), (62, 1449920), (64, 1404610), (80, 1123688), (92, 977120), (115, 781696), (124, 724960), (128, 702305), (155, 579968), (160, 561844), (184, 488560), (197, 456320), (230, 390848), (248, 362480), (310, 289984), (320, 280922), (368, 244280), (394, 228160), (460, 195424), (496, 181240), (620, 144992), (640, 140461), (713, 126080), (736, 122140), (788, 114080), (920, 97712), (985, 91264), (992, 90620), (1240, 72496), (1426, 63040), (1472, 61070), (1576, 57040), (1840, 48856), (1970, 45632), (1984, 45310), (2480, 36248), (2852, 31520), (2944, 30535), (3152, 28520), (3565, 25216), (3680, 24428), (3940, 22816), (3968, 22655), (4531, 19840), (4960, 18124), (5704, 15760), (6107, 14720), (6304, 14260), (7130, 12608), (7360, 12214), (7880, 11408), (9062, 9920)]