19919640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^2$

素因数の和:253

約数の個数: 96

約数和(自身を含む): 64930320

約数和(自身を除く): 45010680

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, 113, 120, 130, 156, 195, 226, 260, 312, 339, 390, 452, 520, 565, 678, 780, 904, 1130, 1356, 1469, 1560, 1695, 2260, 2712, 2938, 3390, 4407, 4520, 5876, 6780, 7345, 8814, 11752, 12769, 13560, 14690, 17628, 22035, 25538, 29380, 35256, 38307, 44070, 51076, 58760, 63845, 76614, 88140, 102152, 127690, 153228, 165997, 176280, 191535, 255380, 306456, 331994, 383070, 497991, 510760, 663988, 766140, 829985, 995982, 1327976, 1532280, 1659970, 1991964, 2489955, 3319940, 3983928, 4979910, 6639880, 9959820, 19919640]

約数ペア:

[(1, 19919640), (2, 9959820), (3, 6639880), (4, 4979910), (5, 3983928), (6, 3319940), (8, 2489955), (10, 1991964), (12, 1659970), (13, 1532280), (15, 1327976), (20, 995982), (24, 829985), (26, 766140), (30, 663988), (39, 510760), (40, 497991), (52, 383070), (60, 331994), (65, 306456), (78, 255380), (104, 191535), (113, 176280), (120, 165997), (130, 153228), (156, 127690), (195, 102152), (226, 88140), (260, 76614), (312, 63845), (339, 58760), (390, 51076), (452, 44070), (520, 38307), (565, 35256), (678, 29380), (780, 25538), (904, 22035), (1130, 17628), (1356, 14690), (1469, 13560), (1560, 12769), (1695, 11752), (2260, 8814), (2712, 7345), (2938, 6780), (3390, 5876), (4407, 4520)]