208981540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1$

素因数の和:325

約数の個数: 96

約数和(自身を含む): 479001600

約数和(自身を除く): 270020060

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 59, 62, 116, 118, 124, 145, 155, 197, 236, 290, 295, 310, 394, 580, 590, 620, 788, 899, 985, 1180, 1711, 1798, 1829, 1970, 3422, 3596, 3658, 3940, 4495, 5713, 6107, 6844, 7316, 8555, 8990, 9145, 11426, 11623, 12214, 17110, 17980, 18290, 22852, 23246, 24428, 28565, 30535, 34220, 36580, 46492, 53041, 57130, 58115, 61070, 106082, 114260, 116230, 122140, 177103, 212164, 232460, 265205, 337067, 354206, 360313, 530410, 674134, 708412, 720626, 885515, 1060820, 1348268, 1441252, 1685335, 1771030, 1801565, 3370670, 3542060, 3603130, 6741340, 7206260, 10449077, 20898154, 41796308, 52245385, 104490770, 208981540]

約数ペア:

[(1, 208981540), (2, 104490770), (4, 52245385), (5, 41796308), (10, 20898154), (20, 10449077), (29, 7206260), (31, 6741340), (58, 3603130), (59, 3542060), (62, 3370670), (116, 1801565), (118, 1771030), (124, 1685335), (145, 1441252), (155, 1348268), (197, 1060820), (236, 885515), (290, 720626), (295, 708412), (310, 674134), (394, 530410), (580, 360313), (590, 354206), (620, 337067), (788, 265205), (899, 232460), (985, 212164), (1180, 177103), (1711, 122140), (1798, 116230), (1829, 114260), (1970, 106082), (3422, 61070), (3596, 58115), (3658, 57130), (3940, 53041), (4495, 46492), (5713, 36580), (6107, 34220), (6844, 30535), (7316, 28565), (8555, 24428), (8990, 23246), (9145, 22852), (11426, 18290), (11623, 17980), (12214, 17110)]