15721457960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{271}}^1\times {\mathrm{3847}}^1$

素因数の和:4171

約数の個数: 128

約数和(自身を含む): 39563596800

約数和(自身を除く): 23842138840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 104, 116, 130, 145, 232, 260, 271, 290, 377, 520, 542, 580, 754, 1084, 1160, 1355, 1508, 1885, 2168, 2710, 3016, 3523, 3770, 3847, 5420, 7046, 7540, 7694, 7859, 10840, 14092, 15080, 15388, 15718, 17615, 19235, 28184, 30776, 31436, 35230, 38470, 39295, 50011, 62872, 70460, 76940, 78590, 100022, 102167, 111563, 140920, 153880, 157180, 200044, 204334, 223126, 250055, 314360, 400088, 408668, 446252, 500110, 510835, 557815, 817336, 892504, 1000220, 1021670, 1042537, 1115630, 1450319, 2000440, 2043340, 2085074, 2231260, 2900638, 4086680, 4170148, 4462520, 5212685, 5801276, 7251595, 8340296, 10425370, 11602552, 13552981, 14503190, 20850740, 27105962, 29006380, 30233573, 41701480, 54211924, 58012760, 60467146, 67764905, 108423848, 120934292, 135529810, 151167865, 241868584, 271059620, 302335730, 393036449, 542119240, 604671460, 786072898, 1209342920, 1572145796, 1965182245, 3144291592, 3930364490, 7860728980, 15721457960]

約数ペア:

[(1, 15721457960), (2, 7860728980), (4, 3930364490), (5, 3144291592), (8, 1965182245), (10, 1572145796), (13, 1209342920), (20, 786072898), (26, 604671460), (29, 542119240), (40, 393036449), (52, 302335730), (58, 271059620), (65, 241868584), (104, 151167865), (116, 135529810), (130, 120934292), (145, 108423848), (232, 67764905), (260, 60467146), (271, 58012760), (290, 54211924), (377, 41701480), (520, 30233573), (542, 29006380), (580, 27105962), (754, 20850740), (1084, 14503190), (1160, 13552981), (1355, 11602552), (1508, 10425370), (1885, 8340296), (2168, 7251595), (2710, 5801276), (3016, 5212685), (3523, 4462520), (3770, 4170148), (3847, 4086680), (5420, 2900638), (7046, 2231260), (7540, 2085074), (7694, 2043340), (7859, 2000440), (10840, 1450319), (14092, 1115630), (15080, 1042537), (15388, 1021670), (15718, 1000220), (17615, 892504), (19235, 817336), (28184, 557815), (30776, 510835), (31436, 500110), (35230, 446252), (38470, 408668), (39295, 400088), (50011, 314360), (62872, 250055), (70460, 223126), (76940, 204334), (78590, 200044), (100022, 157180), (102167, 153880), (111563, 140920)]