19946640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{383}}^1$

素因数の和:437

約数の個数: 160

約数和(自身を含む): 73138176

約数和(自身を除く): 53191536

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 56, 60, 62, 70, 80, 84, 93, 105, 112, 120, 124, 140, 155, 168, 186, 210, 217, 240, 248, 280, 310, 336, 372, 383, 420, 434, 465, 496, 560, 620, 651, 744, 766, 840, 868, 930, 1085, 1149, 1240, 1302, 1488, 1532, 1680, 1736, 1860, 1915, 2170, 2298, 2480, 2604, 2681, 3064, 3255, 3472, 3720, 3830, 4340, 4596, 5208, 5362, 5745, 6128, 6510, 7440, 7660, 8043, 8680, 9192, 10416, 10724, 11490, 11873, 13020, 13405, 15320, 16086, 17360, 18384, 21448, 22980, 23746, 26040, 26810, 30640, 32172, 35619, 40215, 42896, 45960, 47492, 52080, 53620, 59365, 64344, 71238, 80430, 83111, 91920, 94984, 107240, 118730, 128688, 142476, 160860, 166222, 178095, 189968, 214480, 237460, 249333, 284952, 321720, 332444, 356190, 415555, 474920, 498666, 569904, 643440, 664888, 712380, 831110, 949840, 997332, 1246665, 1329776, 1424760, 1662220, 1994664, 2493330, 2849520, 3324440, 3989328, 4986660, 6648880, 9973320, 19946640]

約数ペア:

[(1, 19946640), (2, 9973320), (3, 6648880), (4, 4986660), (5, 3989328), (6, 3324440), (7, 2849520), (8, 2493330), (10, 1994664), (12, 1662220), (14, 1424760), (15, 1329776), (16, 1246665), (20, 997332), (21, 949840), (24, 831110), (28, 712380), (30, 664888), (31, 643440), (35, 569904), (40, 498666), (42, 474920), (48, 415555), (56, 356190), (60, 332444), (62, 321720), (70, 284952), (80, 249333), (84, 237460), (93, 214480), (105, 189968), (112, 178095), (120, 166222), (124, 160860), (140, 142476), (155, 128688), (168, 118730), (186, 107240), (210, 94984), (217, 91920), (240, 83111), (248, 80430), (280, 71238), (310, 64344), (336, 59365), (372, 53620), (383, 52080), (420, 47492), (434, 45960), (465, 42896), (496, 40215), (560, 35619), (620, 32172), (651, 30640), (744, 26810), (766, 26040), (840, 23746), (868, 22980), (930, 21448), (1085, 18384), (1149, 17360), (1240, 16086), (1302, 15320), (1488, 13405), (1532, 13020), (1680, 11873), (1736, 11490), (1860, 10724), (1915, 10416), (2170, 9192), (2298, 8680), (2480, 8043), (2604, 7660), (2681, 7440), (3064, 6510), (3255, 6128), (3472, 5745), (3720, 5362), (3830, 5208), (4340, 4596)]