19813560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{977}}^1$

素因数の和:1017

約数の個数: 96

約数和(自身を含む): 64430640

約数和(自身を除く): 44617080

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, 169, 195, 260, 312, 338, 390, 507, 520, 676, 780, 845, 977, 1014, 1352, 1560, 1690, 1954, 2028, 2535, 2931, 3380, 3908, 4056, 4885, 5070, 5862, 6760, 7816, 9770, 10140, 11724, 12701, 14655, 19540, 20280, 23448, 25402, 29310, 38103, 39080, 50804, 58620, 63505, 76206, 101608, 117240, 127010, 152412, 165113, 190515, 254020, 304824, 330226, 381030, 495339, 508040, 660452, 762060, 825565, 990678, 1320904, 1524120, 1651130, 1981356, 2476695, 3302260, 3962712, 4953390, 6604520, 9906780, 19813560]

約数ペア:

[(1, 19813560), (2, 9906780), (3, 6604520), (4, 4953390), (5, 3962712), (6, 3302260), (8, 2476695), (10, 1981356), (12, 1651130), (13, 1524120), (15, 1320904), (20, 990678), (24, 825565), (26, 762060), (30, 660452), (39, 508040), (40, 495339), (52, 381030), (60, 330226), (65, 304824), (78, 254020), (104, 190515), (120, 165113), (130, 152412), (156, 127010), (169, 117240), (195, 101608), (260, 76206), (312, 63505), (338, 58620), (390, 50804), (507, 39080), (520, 38103), (676, 29310), (780, 25402), (845, 23448), (977, 20280), (1014, 19540), (1352, 14655), (1560, 12701), (1690, 11724), (1954, 10140), (2028, 9770), (2535, 7816), (2931, 6760), (3380, 5862), (3908, 5070), (4056, 4885)]