261427680

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2557}}^1$

素因数の和:2649

約数の個数: 144

約数和(自身を含む): 905040864

約数和(自身を除く): 643613184

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 71, 72, 80, 90, 96, 120, 142, 144, 160, 180, 213, 240, 284, 288, 355, 360, 426, 480, 568, 639, 710, 720, 852, 1065, 1136, 1278, 1420, 1440, 1704, 2130, 2272, 2556, 2557, 2840, 3195, 3408, 4260, 5112, 5114, 5680, 6390, 6816, 7671, 8520, 10224, 10228, 11360, 12780, 12785, 15342, 17040, 20448, 20456, 23013, 25560, 25570, 30684, 34080, 38355, 40912, 46026, 51120, 51140, 61368, 76710, 81824, 92052, 102240, 102280, 115065, 122736, 153420, 181547, 184104, 204560, 230130, 245472, 306840, 363094, 368208, 409120, 460260, 544641, 613680, 726188, 736416, 907735, 920520, 1089282, 1227360, 1452376, 1633923, 1815470, 1841040, 2178564, 2723205, 2904752, 3267846, 3630940, 3682080, 4357128, 5446410, 5809504, 6535692, 7261880, 8169615, 8714256, 10892820, 13071384, 14523760, 16339230, 17428512, 21785640, 26142768, 29047520, 32678460, 43571280, 52285536, 65356920, 87142560, 130713840, 261427680]

約数ペア:

[(1, 261427680), (2, 130713840), (3, 87142560), (4, 65356920), (5, 52285536), (6, 43571280), (8, 32678460), (9, 29047520), (10, 26142768), (12, 21785640), (15, 17428512), (16, 16339230), (18, 14523760), (20, 13071384), (24, 10892820), (30, 8714256), (32, 8169615), (36, 7261880), (40, 6535692), (45, 5809504), (48, 5446410), (60, 4357128), (71, 3682080), (72, 3630940), (80, 3267846), (90, 2904752), (96, 2723205), (120, 2178564), (142, 1841040), (144, 1815470), (160, 1633923), (180, 1452376), (213, 1227360), (240, 1089282), (284, 920520), (288, 907735), (355, 736416), (360, 726188), (426, 613680), (480, 544641), (568, 460260), (639, 409120), (710, 368208), (720, 363094), (852, 306840), (1065, 245472), (1136, 230130), (1278, 204560), (1420, 184104), (1440, 181547), (1704, 153420), (2130, 122736), (2272, 115065), (2556, 102280), (2557, 102240), (2840, 92052), (3195, 81824), (3408, 76710), (4260, 61368), (5112, 51140), (5114, 51120), (5680, 46026), (6390, 40912), (6816, 38355), (7671, 34080), (8520, 30684), (10224, 25570), (10228, 25560), (11360, 23013), (12780, 20456), (12785, 20448), (15342, 17040)]