42819920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:253

約数の個数: 160

約数和(自身を含む): 123742080

約数和(自身を除く): 80922160

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 19, 20, 22, 26, 38, 40, 44, 52, 55, 65, 76, 80, 88, 95, 104, 110, 130, 143, 152, 176, 190, 197, 208, 209, 220, 247, 260, 286, 304, 380, 394, 418, 440, 494, 520, 572, 715, 760, 788, 836, 880, 985, 988, 1040, 1045, 1144, 1235, 1430, 1520, 1576, 1672, 1970, 1976, 2090, 2167, 2288, 2470, 2561, 2717, 2860, 3152, 3344, 3743, 3940, 3952, 4180, 4334, 4940, 5122, 5434, 5720, 7486, 7880, 8360, 8668, 9880, 10244, 10835, 10868, 11440, 12805, 13585, 14972, 15760, 16720, 17336, 18715, 19760, 20488, 21670, 21736, 25610, 27170, 28171, 29944, 34672, 37430, 40976, 41173, 43340, 43472, 48659, 51220, 54340, 56342, 59888, 74860, 82346, 86680, 97318, 102440, 108680, 112684, 140855, 149720, 164692, 173360, 194636, 204880, 205865, 217360, 225368, 243295, 281710, 299440, 329384, 389272, 411730, 450736, 486590, 535249, 563420, 658768, 778544, 823460, 973180, 1070498, 1126840, 1646920, 1946360, 2140996, 2253680, 2676245, 3293840, 3892720, 4281992, 5352490, 8563984, 10704980, 21409960, 42819920]

約数ペア:

[(1, 42819920), (2, 21409960), (4, 10704980), (5, 8563984), (8, 5352490), (10, 4281992), (11, 3892720), (13, 3293840), (16, 2676245), (19, 2253680), (20, 2140996), (22, 1946360), (26, 1646920), (38, 1126840), (40, 1070498), (44, 973180), (52, 823460), (55, 778544), (65, 658768), (76, 563420), (80, 535249), (88, 486590), (95, 450736), (104, 411730), (110, 389272), (130, 329384), (143, 299440), (152, 281710), (176, 243295), (190, 225368), (197, 217360), (208, 205865), (209, 204880), (220, 194636), (247, 173360), (260, 164692), (286, 149720), (304, 140855), (380, 112684), (394, 108680), (418, 102440), (440, 97318), (494, 86680), (520, 82346), (572, 74860), (715, 59888), (760, 56342), (788, 54340), (836, 51220), (880, 48659), (985, 43472), (988, 43340), (1040, 41173), (1045, 40976), (1144, 37430), (1235, 34672), (1430, 29944), (1520, 28171), (1576, 27170), (1672, 25610), (1970, 21736), (1976, 21670), (2090, 20488), (2167, 19760), (2288, 18715), (2470, 17336), (2561, 16720), (2717, 15760), (2860, 14972), (3152, 13585), (3344, 12805), (3743, 11440), (3940, 10868), (3952, 10835), (4180, 10244), (4334, 9880), (4940, 8668), (5122, 8360), (5434, 7880), (5720, 7486)]