19907472

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{523}}^1$

素因数の和:608

約数の個数: 80

約数和(自身を含む): 56399168

約数和(自身を除く): 36491696

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 61, 78, 104, 122, 156, 183, 208, 244, 312, 366, 488, 523, 624, 732, 793, 976, 1046, 1464, 1569, 1586, 2092, 2379, 2928, 3138, 3172, 4184, 4758, 6276, 6344, 6799, 8368, 9516, 12552, 12688, 13598, 19032, 20397, 25104, 27196, 31903, 38064, 40794, 54392, 63806, 81588, 95709, 108784, 127612, 163176, 191418, 255224, 326352, 382836, 414739, 510448, 765672, 829478, 1244217, 1531344, 1658956, 2488434, 3317912, 4976868, 6635824, 9953736, 19907472]

約数ペア:

[(1, 19907472), (2, 9953736), (3, 6635824), (4, 4976868), (6, 3317912), (8, 2488434), (12, 1658956), (13, 1531344), (16, 1244217), (24, 829478), (26, 765672), (39, 510448), (48, 414739), (52, 382836), (61, 326352), (78, 255224), (104, 191418), (122, 163176), (156, 127612), (183, 108784), (208, 95709), (244, 81588), (312, 63806), (366, 54392), (488, 40794), (523, 38064), (624, 31903), (732, 27196), (793, 25104), (976, 20397), (1046, 19032), (1464, 13598), (1569, 12688), (1586, 12552), (2092, 9516), (2379, 8368), (2928, 6799), (3138, 6344), (3172, 6276), (4184, 4758)]