128830000

素因数分解:

$2^4\times 5^4\times {\mathrm{13}}^1\times {\mathrm{991}}^1$

素因数の和:1032

約数の個数: 100

約数和(自身を含む): 336242368

約数和(自身を除く): 207412368

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 200, 208, 250, 260, 325, 400, 500, 520, 625, 650, 991, 1000, 1040, 1250, 1300, 1625, 1982, 2000, 2500, 2600, 3250, 3964, 4955, 5000, 5200, 6500, 7928, 8125, 9910, 10000, 12883, 13000, 15856, 16250, 19820, 24775, 25766, 26000, 32500, 39640, 49550, 51532, 64415, 65000, 79280, 99100, 103064, 123875, 128830, 130000, 198200, 206128, 247750, 257660, 322075, 396400, 495500, 515320, 619375, 644150, 991000, 1030640, 1238750, 1288300, 1610375, 1982000, 2477500, 2576600, 3220750, 4955000, 5153200, 6441500, 8051875, 9910000, 12883000, 16103750, 25766000, 32207500, 64415000, 128830000]

約数ペア:

[(1, 128830000), (2, 64415000), (4, 32207500), (5, 25766000), (8, 16103750), (10, 12883000), (13, 9910000), (16, 8051875), (20, 6441500), (25, 5153200), (26, 4955000), (40, 3220750), (50, 2576600), (52, 2477500), (65, 1982000), (80, 1610375), (100, 1288300), (104, 1238750), (125, 1030640), (130, 991000), (200, 644150), (208, 619375), (250, 515320), (260, 495500), (325, 396400), (400, 322075), (500, 257660), (520, 247750), (625, 206128), (650, 198200), (991, 130000), (1000, 128830), (1040, 123875), (1250, 103064), (1300, 99100), (1625, 79280), (1982, 65000), (2000, 64415), (2500, 51532), (2600, 49550), (3250, 39640), (3964, 32500), (4955, 26000), (5000, 25766), (5200, 24775), (6500, 19820), (7928, 16250), (8125, 15856), (9910, 13000), (10000, 12883)]