19182280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{997}}^1$

素因数の和:1058

約数の個数: 64

約数和(自身を含む): 47784240

約数和(自身を除く): 28601960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 481, 520, 740, 962, 997, 1480, 1924, 1994, 2405, 3848, 3988, 4810, 4985, 7976, 9620, 9970, 12961, 19240, 19940, 25922, 36889, 39880, 51844, 64805, 73778, 103688, 129610, 147556, 184445, 259220, 295112, 368890, 479557, 518440, 737780, 959114, 1475560, 1918228, 2397785, 3836456, 4795570, 9591140, 19182280]

約数ペア:

[(1, 19182280), (2, 9591140), (4, 4795570), (5, 3836456), (8, 2397785), (10, 1918228), (13, 1475560), (20, 959114), (26, 737780), (37, 518440), (40, 479557), (52, 368890), (65, 295112), (74, 259220), (104, 184445), (130, 147556), (148, 129610), (185, 103688), (260, 73778), (296, 64805), (370, 51844), (481, 39880), (520, 36889), (740, 25922), (962, 19940), (997, 19240), (1480, 12961), (1924, 9970), (1994, 9620), (2405, 7976), (3848, 4985), (3988, 4810)]