690201980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4507}}^1$

素因数の和:4579

約数の個数: 96

約数和(自身を含む): 1696450560

約数和(自身を除く): 1006248580

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 31, 38, 52, 62, 65, 76, 95, 124, 130, 155, 190, 247, 260, 310, 380, 403, 494, 589, 620, 806, 988, 1178, 1235, 1612, 2015, 2356, 2470, 2945, 4030, 4507, 4940, 5890, 7657, 8060, 9014, 11780, 15314, 18028, 22535, 30628, 38285, 45070, 58591, 76570, 85633, 90140, 117182, 139717, 153140, 171266, 234364, 279434, 292955, 342532, 428165, 558868, 585910, 698585, 856330, 1113229, 1171820, 1397170, 1712660, 1816321, 2226458, 2654623, 2794340, 3632642, 4452916, 5309246, 5566145, 7265284, 9081605, 10618492, 11132290, 13273115, 18163210, 22264580, 26546230, 34510099, 36326420, 53092460, 69020198, 138040396, 172550495, 345100990, 690201980]

約数ペア:

[(1, 690201980), (2, 345100990), (4, 172550495), (5, 138040396), (10, 69020198), (13, 53092460), (19, 36326420), (20, 34510099), (26, 26546230), (31, 22264580), (38, 18163210), (52, 13273115), (62, 11132290), (65, 10618492), (76, 9081605), (95, 7265284), (124, 5566145), (130, 5309246), (155, 4452916), (190, 3632642), (247, 2794340), (260, 2654623), (310, 2226458), (380, 1816321), (403, 1712660), (494, 1397170), (589, 1171820), (620, 1113229), (806, 856330), (988, 698585), (1178, 585910), (1235, 558868), (1612, 428165), (2015, 342532), (2356, 292955), (2470, 279434), (2945, 234364), (4030, 171266), (4507, 153140), (4940, 139717), (5890, 117182), (7657, 90140), (8060, 85633), (9014, 76570), (11780, 58591), (15314, 45070), (18028, 38285), (22535, 30628)]