18974280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12163}}^1$

素因数の和:12190

約数の個数: 64

約数和(自身を含む): 61306560

約数和(自身を除く): 42332280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 12163, 24326, 36489, 48652, 60815, 72978, 97304, 121630, 145956, 158119, 182445, 243260, 291912, 316238, 364890, 474357, 486520, 632476, 729780, 790595, 948714, 1264952, 1459560, 1581190, 1897428, 2371785, 3162380, 3794856, 4743570, 6324760, 9487140, 18974280]

約数ペア:

[(1, 18974280), (2, 9487140), (3, 6324760), (4, 4743570), (5, 3794856), (6, 3162380), (8, 2371785), (10, 1897428), (12, 1581190), (13, 1459560), (15, 1264952), (20, 948714), (24, 790595), (26, 729780), (30, 632476), (39, 486520), (40, 474357), (52, 364890), (60, 316238), (65, 291912), (78, 243260), (104, 182445), (120, 158119), (130, 145956), (156, 121630), (195, 97304), (260, 72978), (312, 60815), (390, 48652), (520, 36489), (780, 24326), (1560, 12163)]