20172958890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{983}}^1\times {\mathrm{1237}}^1$

素因数の和:2316

約数の個数: 128

約数和(自身を含む): 56134287360

約数和(自身を除く): 35961328470

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 79, 105, 158, 210, 237, 395, 474, 553, 790, 983, 1106, 1185, 1237, 1659, 1966, 2370, 2474, 2765, 2949, 3318, 3711, 4915, 5530, 5898, 6185, 6881, 7422, 8295, 8659, 9830, 12370, 13762, 14745, 16590, 17318, 18555, 20643, 25977, 29490, 34405, 37110, 41286, 43295, 51954, 68810, 77657, 86590, 97723, 103215, 129885, 155314, 195446, 206430, 232971, 259770, 293169, 388285, 465942, 488615, 543599, 586338, 684061, 776570, 977230, 1087198, 1164855, 1215971, 1368122, 1465845, 1630797, 2052183, 2329710, 2431942, 2717995, 2931690, 3261594, 3420305, 3647913, 4104366, 5435990, 6079855, 6840610, 7295826, 8153985, 8511797, 10260915, 12159710, 16307970, 17023594, 18239565, 20521830, 25535391, 36479130, 42558985, 51070782, 85117970, 96061709, 127676955, 192123418, 255353910, 288185127, 480308545, 576370254, 672431963, 960617090, 1344863926, 1440925635, 2017295889, 2881851270, 3362159815, 4034591778, 6724319630, 10086479445, 20172958890]

約数ペア:

[(1, 20172958890), (2, 10086479445), (3, 6724319630), (5, 4034591778), (6, 3362159815), (7, 2881851270), (10, 2017295889), (14, 1440925635), (15, 1344863926), (21, 960617090), (30, 672431963), (35, 576370254), (42, 480308545), (70, 288185127), (79, 255353910), (105, 192123418), (158, 127676955), (210, 96061709), (237, 85117970), (395, 51070782), (474, 42558985), (553, 36479130), (790, 25535391), (983, 20521830), (1106, 18239565), (1185, 17023594), (1237, 16307970), (1659, 12159710), (1966, 10260915), (2370, 8511797), (2474, 8153985), (2765, 7295826), (2949, 6840610), (3318, 6079855), (3711, 5435990), (4915, 4104366), (5530, 3647913), (5898, 3420305), (6185, 3261594), (6881, 2931690), (7422, 2717995), (8295, 2431942), (8659, 2329710), (9830, 2052183), (12370, 1630797), (13762, 1465845), (14745, 1368122), (16590, 1215971), (17318, 1164855), (18555, 1087198), (20643, 977230), (25977, 776570), (29490, 684061), (34405, 586338), (37110, 543599), (41286, 488615), (43295, 465942), (51954, 388285), (68810, 293169), (77657, 259770), (86590, 232971), (97723, 206430), (103215, 195446), (129885, 155314)]