20708460

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{4261}}^1$

素因数の和:4285

約数の個数: 72

約数和(自身を含む): 65157456

約数和(自身を除く): 44448996

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4261, 4860, 8522, 12783, 17044, 21305, 25566, 38349, 42610, 51132, 63915, 76698, 85220, 115047, 127830, 153396, 191745, 230094, 255660, 345141, 383490, 460188, 575235, 690282, 766980, 1035423, 1150470, 1380564, 1725705, 2070846, 2300940, 3451410, 4141692, 5177115, 6902820, 10354230, 20708460]

約数ペア:

[(1, 20708460), (2, 10354230), (3, 6902820), (4, 5177115), (5, 4141692), (6, 3451410), (9, 2300940), (10, 2070846), (12, 1725705), (15, 1380564), (18, 1150470), (20, 1035423), (27, 766980), (30, 690282), (36, 575235), (45, 460188), (54, 383490), (60, 345141), (81, 255660), (90, 230094), (108, 191745), (135, 153396), (162, 127830), (180, 115047), (243, 85220), (270, 76698), (324, 63915), (405, 51132), (486, 42610), (540, 38349), (810, 25566), (972, 21305), (1215, 17044), (1620, 12783), (2430, 8522), (4261, 4860)]