40102020

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{103}}^2$

素因数の和:231

約数の個数: 144

約数和(自身を含む): 143982720

約数和(自身を除く): 103880700

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 103, 105, 108, 126, 135, 140, 180, 189, 206, 210, 252, 270, 309, 315, 378, 412, 420, 515, 540, 618, 630, 721, 756, 927, 945, 1030, 1236, 1260, 1442, 1545, 1854, 1890, 2060, 2163, 2781, 2884, 3090, 3605, 3708, 3780, 4326, 4635, 5562, 6180, 6489, 7210, 8652, 9270, 10609, 10815, 11124, 12978, 13905, 14420, 18540, 19467, 21218, 21630, 25956, 27810, 31827, 32445, 38934, 42436, 43260, 53045, 55620, 63654, 64890, 74263, 77868, 95481, 97335, 106090, 127308, 129780, 148526, 159135, 190962, 194670, 212180, 222789, 286443, 297052, 318270, 371315, 381924, 389340, 445578, 477405, 572886, 636540, 668367, 742630, 891156, 954810, 1113945, 1145772, 1336734, 1432215, 1485260, 1909620, 2005101, 2227890, 2673468, 2864430, 3341835, 4010202, 4455780, 5728860, 6683670, 8020404, 10025505, 13367340, 20051010, 40102020]

約数ペア:

[(1, 40102020), (2, 20051010), (3, 13367340), (4, 10025505), (5, 8020404), (6, 6683670), (7, 5728860), (9, 4455780), (10, 4010202), (12, 3341835), (14, 2864430), (15, 2673468), (18, 2227890), (20, 2005101), (21, 1909620), (27, 1485260), (28, 1432215), (30, 1336734), (35, 1145772), (36, 1113945), (42, 954810), (45, 891156), (54, 742630), (60, 668367), (63, 636540), (70, 572886), (84, 477405), (90, 445578), (103, 389340), (105, 381924), (108, 371315), (126, 318270), (135, 297052), (140, 286443), (180, 222789), (189, 212180), (206, 194670), (210, 190962), (252, 159135), (270, 148526), (309, 129780), (315, 127308), (378, 106090), (412, 97335), (420, 95481), (515, 77868), (540, 74263), (618, 64890), (630, 63654), (721, 55620), (756, 53045), (927, 43260), (945, 42436), (1030, 38934), (1236, 32445), (1260, 31827), (1442, 27810), (1545, 25956), (1854, 21630), (1890, 21218), (2060, 19467), (2163, 18540), (2781, 14420), (2884, 13905), (3090, 12978), (3605, 11124), (3708, 10815), (3780, 10609), (4326, 9270), (4635, 8652), (5562, 7210), (6180, 6489)]