15671200120

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1\times {\mathrm{347}}^1$

素因数の和:725

約数の個数: 128

約数和(自身を含む): 36537661440

約数和(自身を除く): 20866461320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 83, 122, 166, 223, 244, 305, 332, 347, 415, 446, 488, 610, 664, 694, 830, 892, 1115, 1220, 1388, 1660, 1735, 1784, 2230, 2440, 2776, 3320, 3470, 4460, 5063, 6940, 8920, 10126, 13603, 13880, 18509, 20252, 21167, 25315, 27206, 28801, 37018, 40504, 42334, 50630, 54412, 57602, 68015, 74036, 77381, 84668, 92545, 101260, 105835, 108824, 115204, 136030, 144005, 148072, 154762, 169336, 185090, 202520, 211670, 230408, 272060, 288010, 309524, 370180, 386905, 423340, 544120, 576020, 619048, 740360, 773810, 846680, 1129049, 1152040, 1547620, 1756861, 2258098, 3095240, 3513722, 4516196, 4720241, 5645245, 6422623, 7027444, 8784305, 9032392, 9440482, 11290490, 12845246, 14054888, 17568610, 18880964, 22580980, 23601205, 25690492, 32113115, 35137220, 37761928, 45161960, 47202410, 51380984, 64226230, 70274440, 94404820, 128452460, 188809640, 256904920, 391780003, 783560006, 1567120012, 1958900015, 3134240024, 3917800030, 7835600060, 15671200120]

約数ペア:

[(1, 15671200120), (2, 7835600060), (4, 3917800030), (5, 3134240024), (8, 1958900015), (10, 1567120012), (20, 783560006), (40, 391780003), (61, 256904920), (83, 188809640), (122, 128452460), (166, 94404820), (223, 70274440), (244, 64226230), (305, 51380984), (332, 47202410), (347, 45161960), (415, 37761928), (446, 35137220), (488, 32113115), (610, 25690492), (664, 23601205), (694, 22580980), (830, 18880964), (892, 17568610), (1115, 14054888), (1220, 12845246), (1388, 11290490), (1660, 9440482), (1735, 9032392), (1784, 8784305), (2230, 7027444), (2440, 6422623), (2776, 5645245), (3320, 4720241), (3470, 4516196), (4460, 3513722), (5063, 3095240), (6940, 2258098), (8920, 1756861), (10126, 1547620), (13603, 1152040), (13880, 1129049), (18509, 846680), (20252, 773810), (21167, 740360), (25315, 619048), (27206, 576020), (28801, 544120), (37018, 423340), (40504, 386905), (42334, 370180), (50630, 309524), (54412, 288010), (57602, 272060), (68015, 230408), (74036, 211670), (77381, 202520), (84668, 185090), (92545, 169336), (101260, 154762), (105835, 148072), (108824, 144005), (115204, 136030)]