15838520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{241}}^1$

素因数の和:336

約数の個数: 64

約数和(自身を含む): 37635840

約数和(自身を除く): 21797320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 53, 62, 106, 124, 155, 212, 241, 248, 265, 310, 424, 482, 530, 620, 964, 1060, 1205, 1240, 1643, 1928, 2120, 2410, 3286, 4820, 6572, 7471, 8215, 9640, 12773, 13144, 14942, 16430, 25546, 29884, 32860, 37355, 51092, 59768, 63865, 65720, 74710, 102184, 127730, 149420, 255460, 298840, 395963, 510920, 791926, 1583852, 1979815, 3167704, 3959630, 7919260, 15838520]

約数ペア:

[(1, 15838520), (2, 7919260), (4, 3959630), (5, 3167704), (8, 1979815), (10, 1583852), (20, 791926), (31, 510920), (40, 395963), (53, 298840), (62, 255460), (106, 149420), (124, 127730), (155, 102184), (212, 74710), (241, 65720), (248, 63865), (265, 59768), (310, 51092), (424, 37355), (482, 32860), (530, 29884), (620, 25546), (964, 16430), (1060, 14942), (1205, 13144), (1240, 12773), (1643, 9640), (1928, 8215), (2120, 7471), (2410, 6572), (3286, 4820)]