78464720

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1091}}^1$

素因数の和:1164

約数の個数: 80

約数和(自身を含む): 194987520

約数和(自身を除く): 116522800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 40, 58, 62, 80, 116, 124, 145, 155, 232, 248, 290, 310, 464, 496, 580, 620, 899, 1091, 1160, 1240, 1798, 2182, 2320, 2480, 3596, 4364, 4495, 5455, 7192, 8728, 8990, 10910, 14384, 17456, 17980, 21820, 31639, 33821, 35960, 43640, 63278, 67642, 71920, 87280, 126556, 135284, 158195, 169105, 253112, 270568, 316390, 338210, 506224, 541136, 632780, 676420, 980809, 1265560, 1352840, 1961618, 2531120, 2705680, 3923236, 4904045, 7846472, 9808090, 15692944, 19616180, 39232360, 78464720]

約数ペア:

[(1, 78464720), (2, 39232360), (4, 19616180), (5, 15692944), (8, 9808090), (10, 7846472), (16, 4904045), (20, 3923236), (29, 2705680), (31, 2531120), (40, 1961618), (58, 1352840), (62, 1265560), (80, 980809), (116, 676420), (124, 632780), (145, 541136), (155, 506224), (232, 338210), (248, 316390), (290, 270568), (310, 253112), (464, 169105), (496, 158195), (580, 135284), (620, 126556), (899, 87280), (1091, 71920), (1160, 67642), (1240, 63278), (1798, 43640), (2182, 35960), (2320, 33821), (2480, 31639), (3596, 21820), (4364, 17980), (4495, 17456), (5455, 14384), (7192, 10910), (8728, 8990)]