28661880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{967}}^1$

素因数の和:1013

約数の個数: 128

約数和(自身を含む): 97574400

約数和(自身を除く): 68912520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 24, 26, 30, 38, 39, 40, 52, 57, 60, 65, 76, 78, 95, 104, 114, 120, 130, 152, 156, 190, 195, 228, 247, 260, 285, 312, 380, 390, 456, 494, 520, 570, 741, 760, 780, 967, 988, 1140, 1235, 1482, 1560, 1934, 1976, 2280, 2470, 2901, 2964, 3705, 3868, 4835, 4940, 5802, 5928, 7410, 7736, 9670, 9880, 11604, 12571, 14505, 14820, 18373, 19340, 23208, 25142, 29010, 29640, 36746, 37713, 38680, 50284, 55119, 58020, 62855, 73492, 75426, 91865, 100568, 110238, 116040, 125710, 146984, 150852, 183730, 188565, 220476, 238849, 251420, 275595, 301704, 367460, 377130, 440952, 477698, 502840, 551190, 716547, 734920, 754260, 955396, 1102380, 1194245, 1433094, 1508520, 1910792, 2204760, 2388490, 2866188, 3582735, 4776980, 5732376, 7165470, 9553960, 14330940, 28661880]

約数ペア:

[(1, 28661880), (2, 14330940), (3, 9553960), (4, 7165470), (5, 5732376), (6, 4776980), (8, 3582735), (10, 2866188), (12, 2388490), (13, 2204760), (15, 1910792), (19, 1508520), (20, 1433094), (24, 1194245), (26, 1102380), (30, 955396), (38, 754260), (39, 734920), (40, 716547), (52, 551190), (57, 502840), (60, 477698), (65, 440952), (76, 377130), (78, 367460), (95, 301704), (104, 275595), (114, 251420), (120, 238849), (130, 220476), (152, 188565), (156, 183730), (190, 150852), (195, 146984), (228, 125710), (247, 116040), (260, 110238), (285, 100568), (312, 91865), (380, 75426), (390, 73492), (456, 62855), (494, 58020), (520, 55119), (570, 50284), (741, 38680), (760, 37713), (780, 36746), (967, 29640), (988, 29010), (1140, 25142), (1235, 23208), (1482, 19340), (1560, 18373), (1934, 14820), (1976, 14505), (2280, 12571), (2470, 11604), (2901, 9880), (2964, 9670), (3705, 7736), (3868, 7410), (4835, 5928), (4940, 5802)]