20002080

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{5953}}^1$

素因数の和:5978

約数の個数: 96

約数和(自身を含む): 72019584

約数和(自身を除く): 52017504

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 280, 336, 420, 480, 560, 672, 840, 1120, 1680, 3360, 5953, 11906, 17859, 23812, 29765, 35718, 41671, 47624, 59530, 71436, 83342, 89295, 95248, 119060, 125013, 142872, 166684, 178590, 190496, 208355, 238120, 250026, 285744, 333368, 357180, 416710, 476240, 500052, 571488, 625065, 666736, 714360, 833420, 952480, 1000104, 1250130, 1333472, 1428720, 1666840, 2000208, 2500260, 2857440, 3333680, 4000416, 5000520, 6667360, 10001040, 20002080]

約数ペア:

[(1, 20002080), (2, 10001040), (3, 6667360), (4, 5000520), (5, 4000416), (6, 3333680), (7, 2857440), (8, 2500260), (10, 2000208), (12, 1666840), (14, 1428720), (15, 1333472), (16, 1250130), (20, 1000104), (21, 952480), (24, 833420), (28, 714360), (30, 666736), (32, 625065), (35, 571488), (40, 500052), (42, 476240), (48, 416710), (56, 357180), (60, 333368), (70, 285744), (80, 250026), (84, 238120), (96, 208355), (105, 190496), (112, 178590), (120, 166684), (140, 142872), (160, 125013), (168, 119060), (210, 95248), (224, 89295), (240, 83342), (280, 71436), (336, 59530), (420, 47624), (480, 41671), (560, 35718), (672, 29765), (840, 23812), (1120, 17859), (1680, 11906), (3360, 5953)]