18285228

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:551

約数の個数: 72

約数和(自身を含む): 50450400

約数和(自身を除く): 32165172

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 89, 117, 156, 178, 234, 267, 356, 439, 468, 534, 801, 878, 1068, 1157, 1317, 1602, 1756, 2314, 2634, 3204, 3471, 3951, 4628, 5268, 5707, 6942, 7902, 10413, 11414, 13884, 15804, 17121, 20826, 22828, 34242, 39071, 41652, 51363, 68484, 78142, 102726, 117213, 156284, 205452, 234426, 351639, 468852, 507923, 703278, 1015846, 1406556, 1523769, 2031692, 3047538, 4571307, 6095076, 9142614, 18285228]

約数ペア:

[(1, 18285228), (2, 9142614), (3, 6095076), (4, 4571307), (6, 3047538), (9, 2031692), (12, 1523769), (13, 1406556), (18, 1015846), (26, 703278), (36, 507923), (39, 468852), (52, 351639), (78, 234426), (89, 205452), (117, 156284), (156, 117213), (178, 102726), (234, 78142), (267, 68484), (356, 51363), (439, 41652), (468, 39071), (534, 34242), (801, 22828), (878, 20826), (1068, 17121), (1157, 15804), (1317, 13884), (1602, 11414), (1756, 10413), (2314, 7902), (2634, 6942), (3204, 5707), (3471, 5268), (3951, 4628)]