15710720

素因数分解:

$2^9\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2$

素因数の和:78

約数の個数: 120

約数和(自身を含む): 42094404

約数和(自身を除く): 26383684

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 64, 68, 76, 80, 85, 95, 128, 136, 152, 160, 170, 190, 256, 272, 304, 320, 323, 340, 361, 380, 512, 544, 608, 640, 646, 680, 722, 760, 1088, 1216, 1280, 1292, 1360, 1444, 1520, 1615, 1805, 2176, 2432, 2560, 2584, 2720, 2888, 3040, 3230, 3610, 4352, 4864, 5168, 5440, 5776, 6080, 6137, 6460, 7220, 8704, 9728, 10336, 10880, 11552, 12160, 12274, 12920, 14440, 20672, 21760, 23104, 24320, 24548, 25840, 28880, 30685, 41344, 43520, 46208, 48640, 49096, 51680, 57760, 61370, 82688, 92416, 98192, 103360, 115520, 122740, 165376, 184832, 196384, 206720, 231040, 245480, 392768, 413440, 462080, 490960, 785536, 826880, 924160, 981920, 1571072, 1963840, 3142144, 3927680, 7855360, 15710720]

約数ペア:

[(1, 15710720), (2, 7855360), (4, 3927680), (5, 3142144), (8, 1963840), (10, 1571072), (16, 981920), (17, 924160), (19, 826880), (20, 785536), (32, 490960), (34, 462080), (38, 413440), (40, 392768), (64, 245480), (68, 231040), (76, 206720), (80, 196384), (85, 184832), (95, 165376), (128, 122740), (136, 115520), (152, 103360), (160, 98192), (170, 92416), (190, 82688), (256, 61370), (272, 57760), (304, 51680), (320, 49096), (323, 48640), (340, 46208), (361, 43520), (380, 41344), (512, 30685), (544, 28880), (608, 25840), (640, 24548), (646, 24320), (680, 23104), (722, 21760), (760, 20672), (1088, 14440), (1216, 12920), (1280, 12274), (1292, 12160), (1360, 11552), (1444, 10880), (1520, 10336), (1615, 9728), (1805, 8704), (2176, 7220), (2432, 6460), (2560, 6137), (2584, 6080), (2720, 5776), (2888, 5440), (3040, 5168), (3230, 4864), (3610, 4352)]