220153960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:251

約数の個数: 128

約数和(自身を含む): 555206400

約数和(自身を除く): 335052440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 67, 71, 89, 104, 130, 134, 142, 178, 260, 268, 284, 335, 355, 356, 445, 520, 536, 568, 670, 710, 712, 871, 890, 923, 1157, 1340, 1420, 1742, 1780, 1846, 2314, 2680, 2840, 3484, 3560, 3692, 4355, 4615, 4628, 4757, 5785, 5963, 6319, 6968, 7384, 8710, 9230, 9256, 9514, 11570, 11926, 12638, 17420, 18460, 19028, 23140, 23785, 23852, 25276, 29815, 31595, 34840, 36920, 38056, 46280, 47570, 47704, 50552, 59630, 61841, 63190, 77519, 82147, 95140, 119260, 123682, 126380, 155038, 164294, 190280, 238520, 247364, 252760, 309205, 310076, 328588, 387595, 410735, 423373, 494728, 618410, 620152, 657176, 775190, 821470, 846746, 1236820, 1550380, 1642940, 1693492, 2116865, 2473640, 3100760, 3285880, 3386984, 4233730, 5503849, 8467460, 11007698, 16934920, 22015396, 27519245, 44030792, 55038490, 110076980, 220153960]

約数ペア:

[(1, 220153960), (2, 110076980), (4, 55038490), (5, 44030792), (8, 27519245), (10, 22015396), (13, 16934920), (20, 11007698), (26, 8467460), (40, 5503849), (52, 4233730), (65, 3386984), (67, 3285880), (71, 3100760), (89, 2473640), (104, 2116865), (130, 1693492), (134, 1642940), (142, 1550380), (178, 1236820), (260, 846746), (268, 821470), (284, 775190), (335, 657176), (355, 620152), (356, 618410), (445, 494728), (520, 423373), (536, 410735), (568, 387595), (670, 328588), (710, 310076), (712, 309205), (871, 252760), (890, 247364), (923, 238520), (1157, 190280), (1340, 164294), (1420, 155038), (1742, 126380), (1780, 123682), (1846, 119260), (2314, 95140), (2680, 82147), (2840, 77519), (3484, 63190), (3560, 61841), (3692, 59630), (4355, 50552), (4615, 47704), (4628, 47570), (4757, 46280), (5785, 38056), (5963, 36920), (6319, 34840), (6968, 31595), (7384, 29815), (8710, 25276), (9230, 23852), (9256, 23785), (9514, 23140), (11570, 19028), (11926, 18460), (12638, 17420)]