21143200

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:159

約数の個数: 144

約数和(自身を含む): 59058720

約数和(自身を除く): 37915520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 25, 26, 32, 38, 40, 50, 52, 65, 76, 80, 95, 100, 104, 107, 130, 152, 160, 190, 200, 208, 214, 247, 260, 304, 325, 380, 400, 416, 428, 475, 494, 520, 535, 608, 650, 760, 800, 856, 950, 988, 1040, 1070, 1235, 1300, 1391, 1520, 1712, 1900, 1976, 2033, 2080, 2140, 2470, 2600, 2675, 2782, 3040, 3424, 3800, 3952, 4066, 4280, 4940, 5200, 5350, 5564, 6175, 6955, 7600, 7904, 8132, 8560, 9880, 10165, 10400, 10700, 11128, 12350, 13910, 15200, 16264, 17120, 19760, 20330, 21400, 22256, 24700, 26429, 27820, 32528, 34775, 39520, 40660, 42800, 44512, 49400, 50825, 52858, 55640, 65056, 69550, 81320, 85600, 98800, 101650, 105716, 111280, 132145, 139100, 162640, 197600, 203300, 211432, 222560, 264290, 278200, 325280, 406600, 422864, 528580, 556400, 660725, 813200, 845728, 1057160, 1112800, 1321450, 1626400, 2114320, 2642900, 4228640, 5285800, 10571600, 21143200]

約数ペア:

[(1, 21143200), (2, 10571600), (4, 5285800), (5, 4228640), (8, 2642900), (10, 2114320), (13, 1626400), (16, 1321450), (19, 1112800), (20, 1057160), (25, 845728), (26, 813200), (32, 660725), (38, 556400), (40, 528580), (50, 422864), (52, 406600), (65, 325280), (76, 278200), (80, 264290), (95, 222560), (100, 211432), (104, 203300), (107, 197600), (130, 162640), (152, 139100), (160, 132145), (190, 111280), (200, 105716), (208, 101650), (214, 98800), (247, 85600), (260, 81320), (304, 69550), (325, 65056), (380, 55640), (400, 52858), (416, 50825), (428, 49400), (475, 44512), (494, 42800), (520, 40660), (535, 39520), (608, 34775), (650, 32528), (760, 27820), (800, 26429), (856, 24700), (950, 22256), (988, 21400), (1040, 20330), (1070, 19760), (1235, 17120), (1300, 16264), (1391, 15200), (1520, 13910), (1712, 12350), (1900, 11128), (1976, 10700), (2033, 10400), (2080, 10165), (2140, 9880), (2470, 8560), (2600, 8132), (2675, 7904), (2782, 7600), (3040, 6955), (3424, 6175), (3800, 5564), (3952, 5350), (4066, 5200), (4280, 4940)]