31528980

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1$

素因数の和:483

約数の個数: 192

約数和(自身を含む): 118272000

約数和(自身を除く): 86743020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 38, 42, 45, 54, 57, 60, 63, 70, 76, 84, 90, 95, 105, 108, 114, 126, 133, 135, 140, 171, 180, 189, 190, 210, 228, 252, 266, 270, 285, 315, 342, 378, 380, 399, 420, 439, 513, 532, 540, 570, 630, 665, 684, 756, 798, 855, 878, 945, 1026, 1140, 1197, 1260, 1317, 1330, 1596, 1710, 1756, 1890, 1995, 2052, 2195, 2394, 2565, 2634, 2660, 3073, 3420, 3591, 3780, 3951, 3990, 4390, 4788, 5130, 5268, 5985, 6146, 6585, 7182, 7902, 7980, 8341, 8780, 9219, 10260, 11853, 11970, 12292, 13170, 14364, 15365, 15804, 16682, 17955, 18438, 19755, 23706, 23940, 25023, 26340, 27657, 30730, 33364, 35910, 36876, 39510, 41705, 46095, 47412, 50046, 55314, 58387, 59265, 61460, 71820, 75069, 79020, 82971, 83410, 92190, 100092, 110628, 116774, 118530, 125115, 138285, 150138, 165942, 166820, 175161, 184380, 225207, 233548, 237060, 250230, 276570, 291935, 300276, 331884, 350322, 375345, 414855, 450414, 500460, 525483, 553140, 583870, 700644, 750690, 829710, 875805, 900828, 1050966, 1126035, 1167740, 1501380, 1576449, 1659420, 1751610, 2101932, 2252070, 2627415, 3152898, 3503220, 4504140, 5254830, 6305796, 7882245, 10509660, 15764490, 31528980]

約数ペア:

[(1, 31528980), (2, 15764490), (3, 10509660), (4, 7882245), (5, 6305796), (6, 5254830), (7, 4504140), (9, 3503220), (10, 3152898), (12, 2627415), (14, 2252070), (15, 2101932), (18, 1751610), (19, 1659420), (20, 1576449), (21, 1501380), (27, 1167740), (28, 1126035), (30, 1050966), (35, 900828), (36, 875805), (38, 829710), (42, 750690), (45, 700644), (54, 583870), (57, 553140), (60, 525483), (63, 500460), (70, 450414), (76, 414855), (84, 375345), (90, 350322), (95, 331884), (105, 300276), (108, 291935), (114, 276570), (126, 250230), (133, 237060), (135, 233548), (140, 225207), (171, 184380), (180, 175161), (189, 166820), (190, 165942), (210, 150138), (228, 138285), (252, 125115), (266, 118530), (270, 116774), (285, 110628), (315, 100092), (342, 92190), (378, 83410), (380, 82971), (399, 79020), (420, 75069), (439, 71820), (513, 61460), (532, 59265), (540, 58387), (570, 55314), (630, 50046), (665, 47412), (684, 46095), (756, 41705), (798, 39510), (855, 36876), (878, 35910), (945, 33364), (1026, 30730), (1140, 27657), (1197, 26340), (1260, 25023), (1317, 23940), (1330, 23706), (1596, 19755), (1710, 18438), (1756, 17955), (1890, 16682), (1995, 15804), (2052, 15365), (2195, 14364), (2394, 13170), (2565, 12292), (2634, 11970), (2660, 11853), (3073, 10260), (3420, 9219), (3591, 8780), (3780, 8341), (3951, 7980), (3990, 7902), (4390, 7182), (4788, 6585), (5130, 6146), (5268, 5985)]