21006890640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{620771}}^1$

素因数の和:620837

約数の個数: 120

約数和(自身を含む): 72049281408

約数和(自身を除く): 51042390768

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 47, 48, 60, 72, 80, 90, 94, 120, 141, 144, 180, 188, 235, 240, 282, 360, 376, 423, 470, 564, 705, 720, 752, 846, 940, 1128, 1410, 1692, 1880, 2115, 2256, 2820, 3384, 3760, 4230, 5640, 6768, 8460, 11280, 16920, 33840, 620771, 1241542, 1862313, 2483084, 3103855, 3724626, 4966168, 5586939, 6207710, 7449252, 9311565, 9932336, 11173878, 12415420, 14898504, 18623130, 22347756, 24830840, 27934695, 29176237, 29797008, 37246260, 44695512, 49661680, 55869390, 58352474, 74492520, 87528711, 89391024, 111738780, 116704948, 145881185, 148985040, 175057422, 223477560, 233409896, 262586133, 291762370, 350114844, 437643555, 446955120, 466819792, 525172266, 583524740, 700229688, 875287110, 1050344532, 1167049480, 1312930665, 1400459376, 1750574220, 2100689064, 2334098960, 2625861330, 3501148440, 4201378128, 5251722660, 7002296880, 10503445320, 21006890640]

約数ペア:

[(1, 21006890640), (2, 10503445320), (3, 7002296880), (4, 5251722660), (5, 4201378128), (6, 3501148440), (8, 2625861330), (9, 2334098960), (10, 2100689064), (12, 1750574220), (15, 1400459376), (16, 1312930665), (18, 1167049480), (20, 1050344532), (24, 875287110), (30, 700229688), (36, 583524740), (40, 525172266), (45, 466819792), (47, 446955120), (48, 437643555), (60, 350114844), (72, 291762370), (80, 262586133), (90, 233409896), (94, 223477560), (120, 175057422), (141, 148985040), (144, 145881185), (180, 116704948), (188, 111738780), (235, 89391024), (240, 87528711), (282, 74492520), (360, 58352474), (376, 55869390), (423, 49661680), (470, 44695512), (564, 37246260), (705, 29797008), (720, 29176237), (752, 27934695), (846, 24830840), (940, 22347756), (1128, 18623130), (1410, 14898504), (1692, 12415420), (1880, 11173878), (2115, 9932336), (2256, 9311565), (2820, 7449252), (3384, 6207710), (3760, 5586939), (4230, 4966168), (5640, 3724626), (6768, 3103855), (8460, 2483084), (11280, 1862313), (16920, 1241542), (33840, 620771)]