28612290

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:208

約数の個数: 128

約数和(自身を含む): 84602880

約数和(自身を除く): 55990590

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 71, 95, 101, 105, 114, 133, 142, 190, 202, 210, 213, 266, 285, 303, 355, 399, 426, 497, 505, 570, 606, 665, 707, 710, 798, 994, 1010, 1065, 1330, 1349, 1414, 1491, 1515, 1919, 1995, 2121, 2130, 2485, 2698, 2982, 3030, 3535, 3838, 3990, 4047, 4242, 4970, 5757, 6745, 7070, 7171, 7455, 8094, 9443, 9595, 10605, 11514, 13433, 13490, 14342, 14910, 18886, 19190, 20235, 21210, 21513, 26866, 28329, 28785, 35855, 40299, 40470, 43026, 47215, 50197, 56658, 57570, 67165, 71710, 80598, 94430, 100394, 107565, 134330, 136249, 141645, 150591, 201495, 215130, 250985, 272498, 283290, 301182, 402990, 408747, 501970, 681245, 752955, 817494, 953743, 1362490, 1505910, 1907486, 2043735, 2861229, 4087470, 4768715, 5722458, 9537430, 14306145, 28612290]

約数ペア:

[(1, 28612290), (2, 14306145), (3, 9537430), (5, 5722458), (6, 4768715), (7, 4087470), (10, 2861229), (14, 2043735), (15, 1907486), (19, 1505910), (21, 1362490), (30, 953743), (35, 817494), (38, 752955), (42, 681245), (57, 501970), (70, 408747), (71, 402990), (95, 301182), (101, 283290), (105, 272498), (114, 250985), (133, 215130), (142, 201495), (190, 150591), (202, 141645), (210, 136249), (213, 134330), (266, 107565), (285, 100394), (303, 94430), (355, 80598), (399, 71710), (426, 67165), (497, 57570), (505, 56658), (570, 50197), (606, 47215), (665, 43026), (707, 40470), (710, 40299), (798, 35855), (994, 28785), (1010, 28329), (1065, 26866), (1330, 21513), (1349, 21210), (1414, 20235), (1491, 19190), (1515, 18886), (1919, 14910), (1995, 14342), (2121, 13490), (2130, 13433), (2485, 11514), (2698, 10605), (2982, 9595), (3030, 9443), (3535, 8094), (3838, 7455), (3990, 7171), (4047, 7070), (4242, 6745), (4970, 5757)]