15201680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{311}}^1$

素因数の和:384

約数の個数: 80

約数和(自身を含む): 38997504

約数和(自身を除く): 23795824

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 47, 52, 65, 80, 94, 104, 130, 188, 208, 235, 260, 311, 376, 470, 520, 611, 622, 752, 940, 1040, 1222, 1244, 1555, 1880, 2444, 2488, 3055, 3110, 3760, 4043, 4888, 4976, 6110, 6220, 8086, 9776, 12220, 12440, 14617, 16172, 20215, 24440, 24880, 29234, 32344, 40430, 48880, 58468, 64688, 73085, 80860, 116936, 146170, 161720, 190021, 233872, 292340, 323440, 380042, 584680, 760084, 950105, 1169360, 1520168, 1900210, 3040336, 3800420, 7600840, 15201680]

約数ペア:

[(1, 15201680), (2, 7600840), (4, 3800420), (5, 3040336), (8, 1900210), (10, 1520168), (13, 1169360), (16, 950105), (20, 760084), (26, 584680), (40, 380042), (47, 323440), (52, 292340), (65, 233872), (80, 190021), (94, 161720), (104, 146170), (130, 116936), (188, 80860), (208, 73085), (235, 64688), (260, 58468), (311, 48880), (376, 40430), (470, 32344), (520, 29234), (611, 24880), (622, 24440), (752, 20215), (940, 16172), (1040, 14617), (1222, 12440), (1244, 12220), (1555, 9776), (1880, 8086), (2444, 6220), (2488, 6110), (3055, 4976), (3110, 4888), (3760, 4043)]