18277980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{6217}}^1$

素因数の和:6243

約数の個数: 72

約数和(自身を含む): 59543568

約数和(自身を除く): 41265588

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 6217, 12434, 18651, 24868, 31085, 37302, 43519, 62170, 74604, 87038, 93255, 124340, 130557, 174076, 186510, 217595, 261114, 304633, 373020, 435190, 522228, 609266, 652785, 870380, 913899, 1218532, 1305570, 1523165, 1827798, 2611140, 3046330, 3655596, 4569495, 6092660, 9138990, 18277980]

約数ペア:

[(1, 18277980), (2, 9138990), (3, 6092660), (4, 4569495), (5, 3655596), (6, 3046330), (7, 2611140), (10, 1827798), (12, 1523165), (14, 1305570), (15, 1218532), (20, 913899), (21, 870380), (28, 652785), (30, 609266), (35, 522228), (42, 435190), (49, 373020), (60, 304633), (70, 261114), (84, 217595), (98, 186510), (105, 174076), (140, 130557), (147, 124340), (196, 93255), (210, 87038), (245, 74604), (294, 62170), (420, 43519), (490, 37302), (588, 31085), (735, 24868), (980, 18651), (1470, 12434), (2940, 6217)]