165173840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{643}}^1$

素因数の和:701

約数の個数: 120

約数和(自身を含む): 438409440

約数和(自身を除く): 273235600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 169, 190, 208, 247, 260, 304, 338, 380, 494, 520, 643, 676, 760, 845, 988, 1040, 1235, 1286, 1352, 1520, 1690, 1976, 2470, 2572, 2704, 3211, 3215, 3380, 3952, 4940, 5144, 6422, 6430, 6760, 8359, 9880, 10288, 12217, 12844, 12860, 13520, 16055, 16718, 19760, 24434, 25688, 25720, 32110, 33436, 41795, 48868, 51376, 51440, 61085, 64220, 66872, 83590, 97736, 108667, 122170, 128440, 133744, 158821, 167180, 195472, 217334, 244340, 256880, 317642, 334360, 434668, 488680, 543335, 635284, 668720, 794105, 869336, 977360, 1086670, 1270568, 1588210, 1738672, 2064673, 2173340, 2541136, 3176420, 4129346, 4346680, 6352840, 8258692, 8693360, 10323365, 12705680, 16517384, 20646730, 33034768, 41293460, 82586920, 165173840]

約数ペア:

[(1, 165173840), (2, 82586920), (4, 41293460), (5, 33034768), (8, 20646730), (10, 16517384), (13, 12705680), (16, 10323365), (19, 8693360), (20, 8258692), (26, 6352840), (38, 4346680), (40, 4129346), (52, 3176420), (65, 2541136), (76, 2173340), (80, 2064673), (95, 1738672), (104, 1588210), (130, 1270568), (152, 1086670), (169, 977360), (190, 869336), (208, 794105), (247, 668720), (260, 635284), (304, 543335), (338, 488680), (380, 434668), (494, 334360), (520, 317642), (643, 256880), (676, 244340), (760, 217334), (845, 195472), (988, 167180), (1040, 158821), (1235, 133744), (1286, 128440), (1352, 122170), (1520, 108667), (1690, 97736), (1976, 83590), (2470, 66872), (2572, 64220), (2704, 61085), (3211, 51440), (3215, 51376), (3380, 48868), (3952, 41795), (4940, 33436), (5144, 32110), (6422, 25720), (6430, 25688), (6760, 24434), (8359, 19760), (9880, 16718), (10288, 16055), (12217, 13520), (12844, 12860)]