20051640

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:206

約数の個数: 192

約数和(自身を含む): 76190400

約数和(自身を除く): 56138760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 73, 84, 90, 105, 109, 120, 126, 140, 146, 168, 180, 210, 218, 219, 252, 280, 292, 315, 327, 360, 365, 420, 436, 438, 504, 511, 545, 584, 630, 654, 657, 730, 763, 840, 872, 876, 981, 1022, 1090, 1095, 1260, 1308, 1314, 1460, 1526, 1533, 1635, 1752, 1962, 2044, 2180, 2190, 2289, 2520, 2555, 2616, 2628, 2920, 3052, 3066, 3270, 3285, 3815, 3924, 4088, 4360, 4380, 4578, 4599, 4905, 5110, 5256, 6104, 6132, 6540, 6570, 6867, 7630, 7665, 7848, 7957, 8760, 9156, 9198, 9810, 10220, 11445, 12264, 13080, 13140, 13734, 15260, 15330, 15914, 18312, 18396, 19620, 20440, 22890, 22995, 23871, 26280, 27468, 30520, 30660, 31828, 34335, 36792, 39240, 39785, 45780, 45990, 47742, 54936, 55699, 61320, 63656, 68670, 71613, 79570, 91560, 91980, 95484, 111398, 119355, 137340, 143226, 159140, 167097, 183960, 190968, 222796, 238710, 274680, 278495, 286452, 318280, 334194, 358065, 445592, 477420, 501291, 556990, 572904, 668388, 716130, 835485, 954840, 1002582, 1113980, 1336776, 1432260, 1670970, 2005164, 2227960, 2506455, 2864520, 3341940, 4010328, 5012910, 6683880, 10025820, 20051640]

約数ペア:

[(1, 20051640), (2, 10025820), (3, 6683880), (4, 5012910), (5, 4010328), (6, 3341940), (7, 2864520), (8, 2506455), (9, 2227960), (10, 2005164), (12, 1670970), (14, 1432260), (15, 1336776), (18, 1113980), (20, 1002582), (21, 954840), (24, 835485), (28, 716130), (30, 668388), (35, 572904), (36, 556990), (40, 501291), (42, 477420), (45, 445592), (56, 358065), (60, 334194), (63, 318280), (70, 286452), (72, 278495), (73, 274680), (84, 238710), (90, 222796), (105, 190968), (109, 183960), (120, 167097), (126, 159140), (140, 143226), (146, 137340), (168, 119355), (180, 111398), (210, 95484), (218, 91980), (219, 91560), (252, 79570), (280, 71613), (292, 68670), (315, 63656), (327, 61320), (360, 55699), (365, 54936), (420, 47742), (436, 45990), (438, 45780), (504, 39785), (511, 39240), (545, 36792), (584, 34335), (630, 31828), (654, 30660), (657, 30520), (730, 27468), (763, 26280), (840, 23871), (872, 22995), (876, 22890), (981, 20440), (1022, 19620), (1090, 18396), (1095, 18312), (1260, 15914), (1308, 15330), (1314, 15260), (1460, 13734), (1526, 13140), (1533, 13080), (1635, 12264), (1752, 11445), (1962, 10220), (2044, 9810), (2180, 9198), (2190, 9156), (2289, 8760), (2520, 7957), (2555, 7848), (2616, 7665), (2628, 7630), (2920, 6867), (3052, 6570), (3066, 6540), (3270, 6132), (3285, 6104), (3815, 5256), (3924, 5110), (4088, 4905), (4360, 4599), (4380, 4578)]