78671840

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{347}}^1$

素因数の和:484

約数の個数: 96

約数和(自身を含む): 202577760

約数和(自身を除く): 123905920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 109, 130, 160, 208, 218, 260, 347, 416, 436, 520, 545, 694, 872, 1040, 1090, 1388, 1417, 1735, 1744, 2080, 2180, 2776, 2834, 3470, 3488, 4360, 4511, 5552, 5668, 6940, 7085, 8720, 9022, 11104, 11336, 13880, 14170, 17440, 18044, 22555, 22672, 27760, 28340, 36088, 37823, 45110, 45344, 55520, 56680, 72176, 75646, 90220, 113360, 144352, 151292, 180440, 189115, 226720, 302584, 360880, 378230, 491699, 605168, 721760, 756460, 983398, 1210336, 1512920, 1966796, 2458495, 3025840, 3933592, 4916990, 6051680, 7867184, 9833980, 15734368, 19667960, 39335920, 78671840]

約数ペア:

[(1, 78671840), (2, 39335920), (4, 19667960), (5, 15734368), (8, 9833980), (10, 7867184), (13, 6051680), (16, 4916990), (20, 3933592), (26, 3025840), (32, 2458495), (40, 1966796), (52, 1512920), (65, 1210336), (80, 983398), (104, 756460), (109, 721760), (130, 605168), (160, 491699), (208, 378230), (218, 360880), (260, 302584), (347, 226720), (416, 189115), (436, 180440), (520, 151292), (545, 144352), (694, 113360), (872, 90220), (1040, 75646), (1090, 72176), (1388, 56680), (1417, 55520), (1735, 45344), (1744, 45110), (2080, 37823), (2180, 36088), (2776, 28340), (2834, 27760), (3470, 22672), (3488, 22555), (4360, 18044), (4511, 17440), (5552, 14170), (5668, 13880), (6940, 11336), (7085, 11104), (8720, 9022)]