20888921360

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1\times {\mathrm{953}}^1$

素因数の和:1281

約数の個数: 160

約数和(自身を含む): 52432572672

約数和(自身を除く): 31543651312

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 71, 80, 85, 136, 142, 170, 227, 272, 284, 340, 355, 454, 568, 680, 710, 908, 953, 1135, 1136, 1207, 1360, 1420, 1816, 1906, 2270, 2414, 2840, 3632, 3812, 3859, 4540, 4765, 4828, 5680, 6035, 7624, 7718, 9080, 9530, 9656, 12070, 15248, 15436, 16117, 16201, 18160, 19060, 19295, 19312, 24140, 30872, 32234, 32402, 38120, 38590, 48280, 61744, 64468, 64804, 67663, 76240, 77180, 80585, 81005, 96560, 128936, 129608, 135326, 154360, 161170, 162010, 216331, 257872, 259216, 270652, 273989, 308720, 322340, 324020, 338315, 432662, 541304, 547978, 644680, 648040, 676630, 865324, 1081655, 1082608, 1095956, 1150271, 1289360, 1296080, 1353260, 1369945, 1730648, 2163310, 2191912, 2300542, 2706520, 2739890, 3461296, 3677627, 4326620, 4383824, 4601084, 5413040, 5479780, 5751355, 7355254, 8653240, 9202168, 10959560, 11502710, 14710508, 15359501, 17306480, 18388135, 18404336, 21919120, 23005420, 29421016, 30719002, 36776270, 46010840, 58842032, 61438004, 73552540, 76797505, 92021680, 122876008, 147105080, 153595010, 245752016, 261111517, 294210160, 307190020, 522223034, 614380040, 1044446068, 1228760080, 1305557585, 2088892136, 2611115170, 4177784272, 5222230340, 10444460680, 20888921360]

約数ペア:

[(1, 20888921360), (2, 10444460680), (4, 5222230340), (5, 4177784272), (8, 2611115170), (10, 2088892136), (16, 1305557585), (17, 1228760080), (20, 1044446068), (34, 614380040), (40, 522223034), (68, 307190020), (71, 294210160), (80, 261111517), (85, 245752016), (136, 153595010), (142, 147105080), (170, 122876008), (227, 92021680), (272, 76797505), (284, 73552540), (340, 61438004), (355, 58842032), (454, 46010840), (568, 36776270), (680, 30719002), (710, 29421016), (908, 23005420), (953, 21919120), (1135, 18404336), (1136, 18388135), (1207, 17306480), (1360, 15359501), (1420, 14710508), (1816, 11502710), (1906, 10959560), (2270, 9202168), (2414, 8653240), (2840, 7355254), (3632, 5751355), (3812, 5479780), (3859, 5413040), (4540, 4601084), (4765, 4383824), (4828, 4326620), (5680, 3677627), (6035, 3461296), (7624, 2739890), (7718, 2706520), (9080, 2300542), (9530, 2191912), (9656, 2163310), (12070, 1730648), (15248, 1369945), (15436, 1353260), (16117, 1296080), (16201, 1289360), (18160, 1150271), (19060, 1095956), (19295, 1082608), (19312, 1081655), (24140, 865324), (30872, 676630), (32234, 648040), (32402, 644680), (38120, 547978), (38590, 541304), (48280, 432662), (61744, 338315), (64468, 324020), (64804, 322340), (67663, 308720), (76240, 273989), (77180, 270652), (80585, 259216), (81005, 257872), (96560, 216331), (128936, 162010), (129608, 161170), (135326, 154360)]