78712620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{653}}^1$

素因数の和:720

約数の個数: 144

約数和(自身を含む): 263033568

約数和(自身を除く): 184320948

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 41, 42, 49, 60, 70, 82, 84, 98, 105, 123, 140, 147, 164, 196, 205, 210, 245, 246, 287, 294, 410, 420, 490, 492, 574, 588, 615, 653, 735, 820, 861, 980, 1148, 1230, 1306, 1435, 1470, 1722, 1959, 2009, 2460, 2612, 2870, 2940, 3265, 3444, 3918, 4018, 4305, 4571, 5740, 6027, 6530, 7836, 8036, 8610, 9142, 9795, 10045, 12054, 13060, 13713, 17220, 18284, 19590, 20090, 22855, 24108, 26773, 27426, 30135, 31997, 39180, 40180, 45710, 53546, 54852, 60270, 63994, 68565, 80319, 91420, 95991, 107092, 120540, 127988, 133865, 137130, 159985, 160638, 187411, 191982, 267730, 274260, 319970, 321276, 374822, 383964, 401595, 479955, 535460, 562233, 639940, 749644, 803190, 937055, 959910, 1124466, 1311877, 1606380, 1874110, 1919820, 2248932, 2623754, 2811165, 3748220, 3935631, 5247508, 5622330, 6559385, 7871262, 11244660, 13118770, 15742524, 19678155, 26237540, 39356310, 78712620]

約数ペア:

[(1, 78712620), (2, 39356310), (3, 26237540), (4, 19678155), (5, 15742524), (6, 13118770), (7, 11244660), (10, 7871262), (12, 6559385), (14, 5622330), (15, 5247508), (20, 3935631), (21, 3748220), (28, 2811165), (30, 2623754), (35, 2248932), (41, 1919820), (42, 1874110), (49, 1606380), (60, 1311877), (70, 1124466), (82, 959910), (84, 937055), (98, 803190), (105, 749644), (123, 639940), (140, 562233), (147, 535460), (164, 479955), (196, 401595), (205, 383964), (210, 374822), (245, 321276), (246, 319970), (287, 274260), (294, 267730), (410, 191982), (420, 187411), (490, 160638), (492, 159985), (574, 137130), (588, 133865), (615, 127988), (653, 120540), (735, 107092), (820, 95991), (861, 91420), (980, 80319), (1148, 68565), (1230, 63994), (1306, 60270), (1435, 54852), (1470, 53546), (1722, 45710), (1959, 40180), (2009, 39180), (2460, 31997), (2612, 30135), (2870, 27426), (2940, 26773), (3265, 24108), (3444, 22855), (3918, 20090), (4018, 19590), (4305, 18284), (4571, 17220), (5740, 13713), (6027, 13060), (6530, 12054), (7836, 10045), (8036, 9795), (8610, 9142)]