18937660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:215

約数の個数: 96

約数和(自身を含む): 49230720

約数和(自身を除く): 30293060

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 73, 85, 109, 119, 140, 146, 170, 218, 238, 292, 340, 365, 436, 476, 511, 545, 595, 730, 763, 1022, 1090, 1190, 1241, 1460, 1526, 1853, 2044, 2180, 2380, 2482, 2555, 3052, 3706, 3815, 4964, 5110, 6205, 7412, 7630, 7957, 8687, 9265, 10220, 12410, 12971, 15260, 15914, 17374, 18530, 24820, 25942, 31828, 34748, 37060, 39785, 43435, 51884, 55699, 64855, 79570, 86870, 111398, 129710, 135269, 159140, 173740, 222796, 259420, 270538, 278495, 541076, 556990, 676345, 946883, 1113980, 1352690, 1893766, 2705380, 3787532, 4734415, 9468830, 18937660]

約数ペア:

[(1, 18937660), (2, 9468830), (4, 4734415), (5, 3787532), (7, 2705380), (10, 1893766), (14, 1352690), (17, 1113980), (20, 946883), (28, 676345), (34, 556990), (35, 541076), (68, 278495), (70, 270538), (73, 259420), (85, 222796), (109, 173740), (119, 159140), (140, 135269), (146, 129710), (170, 111398), (218, 86870), (238, 79570), (292, 64855), (340, 55699), (365, 51884), (436, 43435), (476, 39785), (511, 37060), (545, 34748), (595, 31828), (730, 25942), (763, 24820), (1022, 18530), (1090, 17374), (1190, 15914), (1241, 15260), (1460, 12971), (1526, 12410), (1853, 10220), (2044, 9265), (2180, 8687), (2380, 7957), (2482, 7630), (2555, 7412), (3052, 6205), (3706, 5110), (3815, 4964)]