61778220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{21013}}^1$

素因数の和:21039

約数の個数: 72

約数和(自身を含む): 201230064

約数和(自身を除く): 139451844

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, 21013, 42026, 63039, 84052, 105065, 126078, 147091, 210130, 252156, 294182, 315195, 420260, 441273, 588364, 630390, 735455, 882546, 1029637, 1260780, 1470910, 1765092, 2059274, 2206365, 2941820, 3088911, 4118548, 4412730, 5148185, 6177822, 8825460, 10296370, 12355644, 15444555, 20592740, 30889110, 61778220]

約数ペア:

[(1, 61778220), (2, 30889110), (3, 20592740), (4, 15444555), (5, 12355644), (6, 10296370), (7, 8825460), (10, 6177822), (12, 5148185), (14, 4412730), (15, 4118548), (20, 3088911), (21, 2941820), (28, 2206365), (30, 2059274), (35, 1765092), (42, 1470910), (49, 1260780), (60, 1029637), (70, 882546), (84, 735455), (98, 630390), (105, 588364), (140, 441273), (147, 420260), (196, 315195), (210, 294182), (245, 252156), (294, 210130), (420, 147091), (490, 126078), (588, 105065), (735, 84052), (980, 63039), (1470, 42026), (2940, 21013)]