20627152

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{457}}^1$

素因数の和:516

約数の個数: 80

約数和(自身を含む): 50885632

約数和(自身を除く): 30258480

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 52, 56, 62, 91, 104, 112, 124, 182, 208, 217, 248, 364, 403, 434, 457, 496, 728, 806, 868, 914, 1456, 1612, 1736, 1828, 2821, 3199, 3224, 3472, 3656, 5642, 5941, 6398, 6448, 7312, 11284, 11882, 12796, 14167, 22568, 23764, 25592, 28334, 41587, 45136, 47528, 51184, 56668, 83174, 95056, 99169, 113336, 166348, 184171, 198338, 226672, 332696, 368342, 396676, 665392, 736684, 793352, 1289197, 1473368, 1586704, 2578394, 2946736, 5156788, 10313576, 20627152]

約数ペア:

[(1, 20627152), (2, 10313576), (4, 5156788), (7, 2946736), (8, 2578394), (13, 1586704), (14, 1473368), (16, 1289197), (26, 793352), (28, 736684), (31, 665392), (52, 396676), (56, 368342), (62, 332696), (91, 226672), (104, 198338), (112, 184171), (124, 166348), (182, 113336), (208, 99169), (217, 95056), (248, 83174), (364, 56668), (403, 51184), (434, 47528), (457, 45136), (496, 41587), (728, 28334), (806, 25592), (868, 23764), (914, 22568), (1456, 14167), (1612, 12796), (1736, 11882), (1828, 11284), (2821, 7312), (3199, 6448), (3224, 6398), (3472, 5941), (3656, 5642)]