81017520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:307

約数の個数: 160

約数和(自身を含む): 268435200

約数和(自身を除く): 187417680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 109, 114, 120, 152, 163, 190, 218, 228, 240, 285, 304, 326, 327, 380, 436, 456, 489, 545, 570, 652, 654, 760, 815, 872, 912, 978, 1090, 1140, 1304, 1308, 1520, 1630, 1635, 1744, 1956, 2071, 2180, 2280, 2445, 2608, 2616, 3097, 3260, 3270, 3912, 4142, 4360, 4560, 4890, 5232, 6194, 6213, 6520, 6540, 7824, 8284, 8720, 9291, 9780, 10355, 12388, 12426, 13040, 13080, 15485, 16568, 17767, 18582, 19560, 20710, 24776, 24852, 26160, 30970, 31065, 33136, 35534, 37164, 39120, 41420, 46455, 49552, 49704, 53301, 61940, 62130, 71068, 74328, 82840, 88835, 92910, 99408, 106602, 123880, 124260, 142136, 148656, 165680, 177670, 185820, 213204, 247760, 248520, 266505, 284272, 337573, 355340, 371640, 426408, 497040, 533010, 675146, 710680, 743280, 852816, 1012719, 1066020, 1350292, 1421360, 1687865, 2025438, 2132040, 2700584, 3375730, 4050876, 4264080, 5063595, 5401168, 6751460, 8101752, 10127190, 13502920, 16203504, 20254380, 27005840, 40508760, 81017520]

約数ペア:

[(1, 81017520), (2, 40508760), (3, 27005840), (4, 20254380), (5, 16203504), (6, 13502920), (8, 10127190), (10, 8101752), (12, 6751460), (15, 5401168), (16, 5063595), (19, 4264080), (20, 4050876), (24, 3375730), (30, 2700584), (38, 2132040), (40, 2025438), (48, 1687865), (57, 1421360), (60, 1350292), (76, 1066020), (80, 1012719), (95, 852816), (109, 743280), (114, 710680), (120, 675146), (152, 533010), (163, 497040), (190, 426408), (218, 371640), (228, 355340), (240, 337573), (285, 284272), (304, 266505), (326, 248520), (327, 247760), (380, 213204), (436, 185820), (456, 177670), (489, 165680), (545, 148656), (570, 142136), (652, 124260), (654, 123880), (760, 106602), (815, 99408), (872, 92910), (912, 88835), (978, 82840), (1090, 74328), (1140, 71068), (1304, 62130), (1308, 61940), (1520, 53301), (1630, 49704), (1635, 49552), (1744, 46455), (1956, 41420), (2071, 39120), (2180, 37164), (2280, 35534), (2445, 33136), (2608, 31065), (2616, 30970), (3097, 26160), (3260, 24852), (3270, 24776), (3912, 20710), (4142, 19560), (4360, 18582), (4560, 17767), (4890, 16568), (5232, 15485), (6194, 13080), (6213, 13040), (6520, 12426), (6540, 12388), (7824, 10355), (8284, 9780), (8720, 9291)]