18905760

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{691}}^1$

素因数の和:731

約数の個数: 144

約数和(自身を含む): 68009760

約数和(自身を除く): 49104000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 96, 114, 120, 144, 152, 160, 171, 180, 190, 228, 240, 285, 288, 304, 342, 360, 380, 456, 480, 570, 608, 684, 691, 720, 760, 855, 912, 1140, 1368, 1382, 1440, 1520, 1710, 1824, 2073, 2280, 2736, 2764, 3040, 3420, 3455, 4146, 4560, 5472, 5528, 6219, 6840, 6910, 8292, 9120, 10365, 11056, 12438, 13129, 13680, 13820, 16584, 20730, 22112, 24876, 26258, 27360, 27640, 31095, 33168, 39387, 41460, 49752, 52516, 55280, 62190, 65645, 66336, 78774, 82920, 99504, 105032, 110560, 118161, 124380, 131290, 157548, 165840, 196935, 199008, 210064, 236322, 248760, 262580, 315096, 331680, 393870, 420128, 472644, 497520, 525160, 590805, 630192, 787740, 945288, 995040, 1050320, 1181610, 1260384, 1575480, 1890576, 2100640, 2363220, 3150960, 3781152, 4726440, 6301920, 9452880, 18905760]

約数ペア:

[(1, 18905760), (2, 9452880), (3, 6301920), (4, 4726440), (5, 3781152), (6, 3150960), (8, 2363220), (9, 2100640), (10, 1890576), (12, 1575480), (15, 1260384), (16, 1181610), (18, 1050320), (19, 995040), (20, 945288), (24, 787740), (30, 630192), (32, 590805), (36, 525160), (38, 497520), (40, 472644), (45, 420128), (48, 393870), (57, 331680), (60, 315096), (72, 262580), (76, 248760), (80, 236322), (90, 210064), (95, 199008), (96, 196935), (114, 165840), (120, 157548), (144, 131290), (152, 124380), (160, 118161), (171, 110560), (180, 105032), (190, 99504), (228, 82920), (240, 78774), (285, 66336), (288, 65645), (304, 62190), (342, 55280), (360, 52516), (380, 49752), (456, 41460), (480, 39387), (570, 33168), (608, 31095), (684, 27640), (691, 27360), (720, 26258), (760, 24876), (855, 22112), (912, 20730), (1140, 16584), (1368, 13820), (1382, 13680), (1440, 13129), (1520, 12438), (1710, 11056), (1824, 10365), (2073, 9120), (2280, 8292), (2736, 6910), (2764, 6840), (3040, 6219), (3420, 5528), (3455, 5472), (4146, 4560)]