21132437560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{311}}^1\times {\mathrm{877}}^1$

素因数の和:1361

約数の個数: 128

約数和(自身を含む): 51773904000

約数和(自身を除く): 30641466440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 149, 260, 298, 311, 520, 596, 622, 745, 877, 1192, 1244, 1490, 1555, 1754, 1937, 2488, 2980, 3110, 3508, 3874, 4043, 4385, 5960, 6220, 7016, 7748, 8086, 8770, 9685, 11401, 12440, 15496, 16172, 17540, 19370, 20215, 22802, 32344, 35080, 38740, 40430, 45604, 46339, 57005, 77480, 80860, 91208, 92678, 114010, 130673, 161720, 185356, 228020, 231695, 261346, 272747, 370712, 456040, 463390, 522692, 545494, 602407, 653365, 926780, 1045384, 1090988, 1204814, 1306730, 1363735, 1698749, 1853560, 2181976, 2409628, 2613460, 2727470, 3012035, 3397498, 3545711, 4819256, 5226920, 5454940, 6024070, 6794996, 7091422, 8493745, 10909880, 12048140, 13589992, 14182844, 16987490, 17728555, 24096280, 28365688, 33974980, 35457110, 40639303, 67949960, 70914220, 81278606, 141828440, 162557212, 203196515, 325114424, 406393030, 528310939, 812786060, 1056621878, 1625572120, 2113243756, 2641554695, 4226487512, 5283109390, 10566218780, 21132437560]

約数ペア:

[(1, 21132437560), (2, 10566218780), (4, 5283109390), (5, 4226487512), (8, 2641554695), (10, 2113243756), (13, 1625572120), (20, 1056621878), (26, 812786060), (40, 528310939), (52, 406393030), (65, 325114424), (104, 203196515), (130, 162557212), (149, 141828440), (260, 81278606), (298, 70914220), (311, 67949960), (520, 40639303), (596, 35457110), (622, 33974980), (745, 28365688), (877, 24096280), (1192, 17728555), (1244, 16987490), (1490, 14182844), (1555, 13589992), (1754, 12048140), (1937, 10909880), (2488, 8493745), (2980, 7091422), (3110, 6794996), (3508, 6024070), (3874, 5454940), (4043, 5226920), (4385, 4819256), (5960, 3545711), (6220, 3397498), (7016, 3012035), (7748, 2727470), (8086, 2613460), (8770, 2409628), (9685, 2181976), (11401, 1853560), (12440, 1698749), (15496, 1363735), (16172, 1306730), (17540, 1204814), (19370, 1090988), (20215, 1045384), (22802, 926780), (32344, 653365), (35080, 602407), (38740, 545494), (40430, 522692), (45604, 463390), (46339, 456040), (57005, 370712), (77480, 272747), (80860, 261346), (91208, 231695), (92678, 228020), (114010, 185356), (130673, 161720)]