20228375680

素因数分解:

$2^7\times 5^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{3319}}^1$

素因数の和:3534

約数の個数: 128

約数和(自身を含む): 49373712000

約数和(自身を除く): 29145336320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 107, 128, 160, 178, 214, 320, 356, 428, 445, 535, 640, 712, 856, 890, 1070, 1424, 1712, 1780, 2140, 2848, 3319, 3424, 3560, 4280, 5696, 6638, 6848, 7120, 8560, 9523, 11392, 13276, 13696, 14240, 16595, 17120, 19046, 26552, 28480, 33190, 34240, 38092, 47615, 53104, 56960, 66380, 68480, 76184, 95230, 106208, 132760, 152368, 190460, 212416, 265520, 295391, 304736, 355133, 380920, 424832, 531040, 590782, 609472, 710266, 761840, 1062080, 1181564, 1218944, 1420532, 1476955, 1523680, 1775665, 2124160, 2363128, 2841064, 2953910, 3047360, 3551330, 4726256, 5682128, 5907820, 6094720, 7102660, 9452512, 11364256, 11815640, 14205320, 18905024, 22728512, 23631280, 28410640, 31606837, 37810048, 45457024, 47262560, 56821280, 63213674, 94525120, 113642560, 126427348, 158034185, 189050240, 227285120, 252854696, 316068370, 505709392, 632136740, 1011418784, 1264273480, 2022837568, 2528546960, 4045675136, 5057093920, 10114187840, 20228375680]

約数ペア:

[(1, 20228375680), (2, 10114187840), (4, 5057093920), (5, 4045675136), (8, 2528546960), (10, 2022837568), (16, 1264273480), (20, 1011418784), (32, 632136740), (40, 505709392), (64, 316068370), (80, 252854696), (89, 227285120), (107, 189050240), (128, 158034185), (160, 126427348), (178, 113642560), (214, 94525120), (320, 63213674), (356, 56821280), (428, 47262560), (445, 45457024), (535, 37810048), (640, 31606837), (712, 28410640), (856, 23631280), (890, 22728512), (1070, 18905024), (1424, 14205320), (1712, 11815640), (1780, 11364256), (2140, 9452512), (2848, 7102660), (3319, 6094720), (3424, 5907820), (3560, 5682128), (4280, 4726256), (5696, 3551330), (6638, 3047360), (6848, 2953910), (7120, 2841064), (8560, 2363128), (9523, 2124160), (11392, 1775665), (13276, 1523680), (13696, 1476955), (14240, 1420532), (16595, 1218944), (17120, 1181564), (19046, 1062080), (26552, 761840), (28480, 710266), (33190, 609472), (34240, 590782), (38092, 531040), (47615, 424832), (53104, 380920), (56960, 355133), (66380, 304736), (68480, 295391), (76184, 265520), (95230, 212416), (106208, 190460), (132760, 152368)]