21269040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1$

素因数の和:447

約数の個数: 160

約数和(自身を含む): 75370176

約数和(自身を除く): 54101136

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 17, 20, 24, 26, 30, 34, 39, 40, 48, 51, 52, 60, 65, 68, 78, 80, 85, 102, 104, 120, 130, 136, 156, 170, 195, 204, 208, 221, 240, 255, 260, 272, 312, 340, 390, 401, 408, 442, 510, 520, 624, 663, 680, 780, 802, 816, 884, 1020, 1040, 1105, 1203, 1326, 1360, 1560, 1604, 1768, 2005, 2040, 2210, 2406, 2652, 3120, 3208, 3315, 3536, 4010, 4080, 4420, 4812, 5213, 5304, 6015, 6416, 6630, 6817, 8020, 8840, 9624, 10426, 10608, 12030, 13260, 13634, 15639, 16040, 17680, 19248, 20451, 20852, 24060, 26065, 26520, 27268, 31278, 32080, 34085, 40902, 41704, 48120, 52130, 53040, 54536, 62556, 68170, 78195, 81804, 83408, 88621, 96240, 102255, 104260, 109072, 125112, 136340, 156390, 163608, 177242, 204510, 208520, 250224, 265863, 272680, 312780, 327216, 354484, 409020, 417040, 443105, 531726, 545360, 625560, 708968, 818040, 886210, 1063452, 1251120, 1329315, 1417936, 1636080, 1772420, 2126904, 2658630, 3544840, 4253808, 5317260, 7089680, 10634520, 21269040]

約数ペア:

[(1, 21269040), (2, 10634520), (3, 7089680), (4, 5317260), (5, 4253808), (6, 3544840), (8, 2658630), (10, 2126904), (12, 1772420), (13, 1636080), (15, 1417936), (16, 1329315), (17, 1251120), (20, 1063452), (24, 886210), (26, 818040), (30, 708968), (34, 625560), (39, 545360), (40, 531726), (48, 443105), (51, 417040), (52, 409020), (60, 354484), (65, 327216), (68, 312780), (78, 272680), (80, 265863), (85, 250224), (102, 208520), (104, 204510), (120, 177242), (130, 163608), (136, 156390), (156, 136340), (170, 125112), (195, 109072), (204, 104260), (208, 102255), (221, 96240), (240, 88621), (255, 83408), (260, 81804), (272, 78195), (312, 68170), (340, 62556), (390, 54536), (401, 53040), (408, 52130), (442, 48120), (510, 41704), (520, 40902), (624, 34085), (663, 32080), (680, 31278), (780, 27268), (802, 26520), (816, 26065), (884, 24060), (1020, 20852), (1040, 20451), (1105, 19248), (1203, 17680), (1326, 16040), (1360, 15639), (1560, 13634), (1604, 13260), (1768, 12030), (2005, 10608), (2040, 10426), (2210, 9624), (2406, 8840), (2652, 8020), (3120, 6817), (3208, 6630), (3315, 6416), (3536, 6015), (4010, 5304), (4080, 5213), (4420, 4812)]