51054520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:269

約数の個数: 128

約数和(自身を含む): 136857600

約数和(自身を除く): 85803080

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 31, 38, 40, 44, 55, 62, 76, 88, 95, 110, 124, 152, 155, 190, 197, 209, 220, 248, 310, 341, 380, 394, 418, 440, 589, 620, 682, 760, 788, 836, 985, 1045, 1178, 1240, 1364, 1576, 1672, 1705, 1970, 2090, 2167, 2356, 2728, 2945, 3410, 3743, 3940, 4180, 4334, 4712, 5890, 6107, 6479, 6820, 7486, 7880, 8360, 8668, 10835, 11780, 12214, 12958, 13640, 14972, 17336, 18715, 21670, 23560, 24428, 25916, 29944, 30535, 32395, 37430, 41173, 43340, 48856, 51832, 61070, 64790, 67177, 74860, 82346, 86680, 116033, 122140, 129580, 134354, 149720, 164692, 205865, 232066, 244280, 259160, 268708, 329384, 335885, 411730, 464132, 537416, 580165, 671770, 823460, 928264, 1160330, 1276363, 1343540, 1646920, 2320660, 2552726, 2687080, 4641320, 5105452, 6381815, 10210904, 12763630, 25527260, 51054520]

約数ペア:

[(1, 51054520), (2, 25527260), (4, 12763630), (5, 10210904), (8, 6381815), (10, 5105452), (11, 4641320), (19, 2687080), (20, 2552726), (22, 2320660), (31, 1646920), (38, 1343540), (40, 1276363), (44, 1160330), (55, 928264), (62, 823460), (76, 671770), (88, 580165), (95, 537416), (110, 464132), (124, 411730), (152, 335885), (155, 329384), (190, 268708), (197, 259160), (209, 244280), (220, 232066), (248, 205865), (310, 164692), (341, 149720), (380, 134354), (394, 129580), (418, 122140), (440, 116033), (589, 86680), (620, 82346), (682, 74860), (760, 67177), (788, 64790), (836, 61070), (985, 51832), (1045, 48856), (1178, 43340), (1240, 41173), (1364, 37430), (1576, 32395), (1672, 30535), (1705, 29944), (1970, 25916), (2090, 24428), (2167, 23560), (2356, 21670), (2728, 18715), (2945, 17336), (3410, 14972), (3743, 13640), (3940, 12958), (4180, 12214), (4334, 11780), (4712, 10835), (5890, 8668), (6107, 8360), (6479, 7880), (6820, 7486)]