18981480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{383}}^1$

素因数の和:463

約数の個数: 128

約数和(自身を含む): 66355200

約数和(自身を除く): 47373720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 59, 60, 70, 84, 105, 118, 120, 140, 168, 177, 210, 236, 280, 295, 354, 383, 413, 420, 472, 590, 708, 766, 826, 840, 885, 1149, 1180, 1239, 1416, 1532, 1652, 1770, 1915, 2065, 2298, 2360, 2478, 2681, 3064, 3304, 3540, 3830, 4130, 4596, 4956, 5362, 5745, 6195, 7080, 7660, 8043, 8260, 9192, 9912, 10724, 11490, 12390, 13405, 15320, 16086, 16520, 21448, 22597, 22980, 24780, 26810, 32172, 40215, 45194, 45960, 49560, 53620, 64344, 67791, 80430, 90388, 107240, 112985, 135582, 158179, 160860, 180776, 225970, 271164, 316358, 321720, 338955, 451940, 474537, 542328, 632716, 677910, 790895, 903880, 949074, 1265432, 1355820, 1581790, 1898148, 2372685, 2711640, 3163580, 3796296, 4745370, 6327160, 9490740, 18981480]

約数ペア:

[(1, 18981480), (2, 9490740), (3, 6327160), (4, 4745370), (5, 3796296), (6, 3163580), (7, 2711640), (8, 2372685), (10, 1898148), (12, 1581790), (14, 1355820), (15, 1265432), (20, 949074), (21, 903880), (24, 790895), (28, 677910), (30, 632716), (35, 542328), (40, 474537), (42, 451940), (56, 338955), (59, 321720), (60, 316358), (70, 271164), (84, 225970), (105, 180776), (118, 160860), (120, 158179), (140, 135582), (168, 112985), (177, 107240), (210, 90388), (236, 80430), (280, 67791), (295, 64344), (354, 53620), (383, 49560), (413, 45960), (420, 45194), (472, 40215), (590, 32172), (708, 26810), (766, 24780), (826, 22980), (840, 22597), (885, 21448), (1149, 16520), (1180, 16086), (1239, 15320), (1416, 13405), (1532, 12390), (1652, 11490), (1770, 10724), (1915, 9912), (2065, 9192), (2298, 8260), (2360, 8043), (2478, 7660), (2681, 7080), (3064, 6195), (3304, 5745), (3540, 5362), (3830, 4956), (4130, 4596)]