20120860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:163

約数の個数: 96

約数和(自身を含む): 48771072

約数和(自身を除く): 28650212

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 31, 34, 46, 62, 68, 83, 85, 92, 115, 124, 155, 166, 170, 230, 310, 332, 340, 391, 415, 460, 527, 620, 713, 782, 830, 1054, 1411, 1426, 1564, 1660, 1909, 1955, 2108, 2573, 2635, 2822, 2852, 3565, 3818, 3910, 5146, 5270, 5644, 7055, 7130, 7636, 7820, 9545, 10292, 10540, 12121, 12865, 14110, 14260, 19090, 24242, 25730, 28220, 32453, 38180, 43741, 48484, 51460, 59179, 60605, 64906, 87482, 118358, 121210, 129812, 162265, 174964, 218705, 236716, 242420, 295895, 324530, 437410, 591790, 649060, 874820, 1006043, 1183580, 2012086, 4024172, 5030215, 10060430, 20120860]

約数ペア:

[(1, 20120860), (2, 10060430), (4, 5030215), (5, 4024172), (10, 2012086), (17, 1183580), (20, 1006043), (23, 874820), (31, 649060), (34, 591790), (46, 437410), (62, 324530), (68, 295895), (83, 242420), (85, 236716), (92, 218705), (115, 174964), (124, 162265), (155, 129812), (166, 121210), (170, 118358), (230, 87482), (310, 64906), (332, 60605), (340, 59179), (391, 51460), (415, 48484), (460, 43741), (527, 38180), (620, 32453), (713, 28220), (782, 25730), (830, 24242), (1054, 19090), (1411, 14260), (1426, 14110), (1564, 12865), (1660, 12121), (1909, 10540), (1955, 10292), (2108, 9545), (2573, 7820), (2635, 7636), (2822, 7130), (2852, 7055), (3565, 5644), (3818, 5270), (3910, 5146)]