20878200

素因数分解:

$2^3\times 3^2\times 5^2\times 7^1\times {\mathrm{1657}}^1$

素因数の和:1686

約数の個数: 144

約数和(自身を含む): 80180880

約数和(自身を除く): 59302680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 50, 56, 60, 63, 70, 72, 75, 84, 90, 100, 105, 120, 126, 140, 150, 168, 175, 180, 200, 210, 225, 252, 280, 300, 315, 350, 360, 420, 450, 504, 525, 600, 630, 700, 840, 900, 1050, 1260, 1400, 1575, 1657, 1800, 2100, 2520, 3150, 3314, 4200, 4971, 6300, 6628, 8285, 9942, 11599, 12600, 13256, 14913, 16570, 19884, 23198, 24855, 29826, 33140, 34797, 39768, 41425, 46396, 49710, 57995, 59652, 66280, 69594, 74565, 82850, 92792, 99420, 104391, 115990, 119304, 124275, 139188, 149130, 165700, 173985, 198840, 208782, 231980, 248550, 278376, 289975, 298260, 331400, 347970, 372825, 417564, 463960, 497100, 521955, 579950, 596520, 695940, 745650, 835128, 869925, 994200, 1043910, 1159900, 1391880, 1491300, 1739850, 2087820, 2319800, 2609775, 2982600, 3479700, 4175640, 5219550, 6959400, 10439100, 20878200]

約数ペア:

[(1, 20878200), (2, 10439100), (3, 6959400), (4, 5219550), (5, 4175640), (6, 3479700), (7, 2982600), (8, 2609775), (9, 2319800), (10, 2087820), (12, 1739850), (14, 1491300), (15, 1391880), (18, 1159900), (20, 1043910), (21, 994200), (24, 869925), (25, 835128), (28, 745650), (30, 695940), (35, 596520), (36, 579950), (40, 521955), (42, 497100), (45, 463960), (50, 417564), (56, 372825), (60, 347970), (63, 331400), (70, 298260), (72, 289975), (75, 278376), (84, 248550), (90, 231980), (100, 208782), (105, 198840), (120, 173985), (126, 165700), (140, 149130), (150, 139188), (168, 124275), (175, 119304), (180, 115990), (200, 104391), (210, 99420), (225, 92792), (252, 82850), (280, 74565), (300, 69594), (315, 66280), (350, 59652), (360, 57995), (420, 49710), (450, 46396), (504, 41425), (525, 39768), (600, 34797), (630, 33140), (700, 29826), (840, 24855), (900, 23198), (1050, 19884), (1260, 16570), (1400, 14913), (1575, 13256), (1657, 12600), (1800, 11599), (2100, 9942), (2520, 8285), (3150, 6628), (3314, 6300), (4200, 4971)]