18745380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{467}}^1$

素因数の和:705

約数の個数: 72

約数和(自身を含む): 57238272

約数和(自身を除く): 38492892

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 223, 446, 467, 669, 892, 934, 1115, 1338, 1401, 1868, 2007, 2230, 2335, 2676, 2802, 3345, 4014, 4203, 4460, 4670, 5604, 6690, 7005, 8028, 8406, 9340, 10035, 13380, 14010, 16812, 20070, 21015, 28020, 40140, 42030, 84060, 104141, 208282, 312423, 416564, 520705, 624846, 937269, 1041410, 1249692, 1562115, 1874538, 2082820, 3124230, 3749076, 4686345, 6248460, 9372690, 18745380]

約数ペア:

[(1, 18745380), (2, 9372690), (3, 6248460), (4, 4686345), (5, 3749076), (6, 3124230), (9, 2082820), (10, 1874538), (12, 1562115), (15, 1249692), (18, 1041410), (20, 937269), (30, 624846), (36, 520705), (45, 416564), (60, 312423), (90, 208282), (180, 104141), (223, 84060), (446, 42030), (467, 40140), (669, 28020), (892, 21015), (934, 20070), (1115, 16812), (1338, 14010), (1401, 13380), (1868, 10035), (2007, 9340), (2230, 8406), (2335, 8028), (2676, 7005), (2802, 6690), (3345, 5604), (4014, 4670), (4203, 4460)]