81304860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14891}}^1$

素因数の和:14923

約数の個数: 96

約数和(自身を含む): 280207872

約数和(自身を除く): 198903012

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 14891, 29782, 44673, 59564, 74455, 89346, 104237, 148910, 178692, 193583, 208474, 223365, 297820, 312711, 387166, 416948, 446730, 521185, 580749, 625422, 774332, 893460, 967915, 1042370, 1161498, 1250844, 1355081, 1563555, 1935830, 2084740, 2322996, 2710162, 2903745, 3127110, 3871660, 4065243, 5420324, 5807490, 6254220, 6775405, 8130486, 11614980, 13550810, 16260972, 20326215, 27101620, 40652430, 81304860]

約数ペア:

[(1, 81304860), (2, 40652430), (3, 27101620), (4, 20326215), (5, 16260972), (6, 13550810), (7, 11614980), (10, 8130486), (12, 6775405), (13, 6254220), (14, 5807490), (15, 5420324), (20, 4065243), (21, 3871660), (26, 3127110), (28, 2903745), (30, 2710162), (35, 2322996), (39, 2084740), (42, 1935830), (52, 1563555), (60, 1355081), (65, 1250844), (70, 1161498), (78, 1042370), (84, 967915), (91, 893460), (105, 774332), (130, 625422), (140, 580749), (156, 521185), (182, 446730), (195, 416948), (210, 387166), (260, 312711), (273, 297820), (364, 223365), (390, 208474), (420, 193583), (455, 178692), (546, 148910), (780, 104237), (910, 89346), (1092, 74455), (1365, 59564), (1820, 44673), (2730, 29782), (5460, 14891)]