1900485720

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{251387}}^1$

素因数の和:251414

約数の個数: 128

約数和(自身を含む): 7239974400

約数和(自身を除く): 5339488680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 7560, 251387, 502774, 754161, 1005548, 1256935, 1508322, 1759709, 2011096, 2262483, 2513870, 3016644, 3519418, 3770805, 4524966, 5027740, 5279127, 6033288, 6787449, 7038836, 7541610, 8798545, 9049932, 10055480, 10558254, 11312415, 13574898, 14077672, 15083220, 15837381, 17597090, 18099864, 21116508, 22624830, 26395635, 27149796, 30166440, 31674762, 33937245, 35194180, 42233016, 45249660, 47512143, 52791270, 54299592, 63349524, 67874490, 70388360, 79186905, 90499320, 95024286, 105582540, 126699048, 135748980, 158373810, 190048572, 211165080, 237560715, 271497960, 316747620, 380097144, 475121430, 633495240, 950242860, 1900485720]

約数ペア:

[(1, 1900485720), (2, 950242860), (3, 633495240), (4, 475121430), (5, 380097144), (6, 316747620), (7, 271497960), (8, 237560715), (9, 211165080), (10, 190048572), (12, 158373810), (14, 135748980), (15, 126699048), (18, 105582540), (20, 95024286), (21, 90499320), (24, 79186905), (27, 70388360), (28, 67874490), (30, 63349524), (35, 54299592), (36, 52791270), (40, 47512143), (42, 45249660), (45, 42233016), (54, 35194180), (56, 33937245), (60, 31674762), (63, 30166440), (70, 27149796), (72, 26395635), (84, 22624830), (90, 21116508), (105, 18099864), (108, 17597090), (120, 15837381), (126, 15083220), (135, 14077672), (140, 13574898), (168, 11312415), (180, 10558254), (189, 10055480), (210, 9049932), (216, 8798545), (252, 7541610), (270, 7038836), (280, 6787449), (315, 6033288), (360, 5279127), (378, 5027740), (420, 4524966), (504, 3770805), (540, 3519418), (630, 3016644), (756, 2513870), (840, 2262483), (945, 2011096), (1080, 1759709), (1260, 1508322), (1512, 1256935), (1890, 1005548), (2520, 754161), (3780, 502774), (7560, 251387)]