420787500

素因数分解:

$2^2\times 3^1\times 5^5\times 7^2\times {\mathrm{229}}^1$

素因数の和:275

約数の個数: 216

約数和(自身を含む): 1433814480

約数和(自身を除く): 1013026980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 49, 50, 60, 70, 75, 84, 98, 100, 105, 125, 140, 147, 150, 175, 196, 210, 229, 245, 250, 294, 300, 350, 375, 420, 458, 490, 500, 525, 588, 625, 687, 700, 735, 750, 875, 916, 980, 1050, 1145, 1225, 1250, 1374, 1470, 1500, 1603, 1750, 1875, 2100, 2290, 2450, 2500, 2625, 2748, 2940, 3125, 3206, 3435, 3500, 3675, 3750, 4375, 4580, 4809, 4900, 5250, 5725, 6125, 6250, 6412, 6870, 7350, 7500, 8015, 8750, 9375, 9618, 10500, 11221, 11450, 12250, 12500, 13125, 13740, 14700, 16030, 17175, 17500, 18375, 18750, 19236, 21875, 22442, 22900, 24045, 24500, 26250, 28625, 30625, 32060, 33663, 34350, 36750, 37500, 40075, 43750, 44884, 48090, 52500, 56105, 57250, 61250, 65625, 67326, 68700, 73500, 80150, 85875, 87500, 91875, 96180, 112210, 114500, 120225, 122500, 131250, 134652, 143125, 153125, 160300, 168315, 171750, 183750, 200375, 224420, 240450, 262500, 280525, 286250, 306250, 336630, 343500, 367500, 400750, 429375, 459375, 480900, 561050, 572500, 601125, 612500, 673260, 715625, 801500, 841575, 858750, 918750, 1001875, 1122100, 1202250, 1402625, 1431250, 1683150, 1717500, 1837500, 2003750, 2146875, 2404500, 2805250, 2862500, 3005625, 3366300, 4007500, 4207875, 4293750, 5009375, 5610500, 6011250, 7013125, 8415750, 8587500, 10018750, 12022500, 14026250, 15028125, 16831500, 20037500, 21039375, 28052500, 30056250, 35065625, 42078750, 60112500, 70131250, 84157500, 105196875, 140262500, 210393750, 420787500]

約数ペア:

[(1, 420787500), (2, 210393750), (3, 140262500), (4, 105196875), (5, 84157500), (6, 70131250), (7, 60112500), (10, 42078750), (12, 35065625), (14, 30056250), (15, 28052500), (20, 21039375), (21, 20037500), (25, 16831500), (28, 15028125), (30, 14026250), (35, 12022500), (42, 10018750), (49, 8587500), (50, 8415750), (60, 7013125), (70, 6011250), (75, 5610500), (84, 5009375), (98, 4293750), (100, 4207875), (105, 4007500), (125, 3366300), (140, 3005625), (147, 2862500), (150, 2805250), (175, 2404500), (196, 2146875), (210, 2003750), (229, 1837500), (245, 1717500), (250, 1683150), (294, 1431250), (300, 1402625), (350, 1202250), (375, 1122100), (420, 1001875), (458, 918750), (490, 858750), (500, 841575), (525, 801500), (588, 715625), (625, 673260), (687, 612500), (700, 601125), (735, 572500), (750, 561050), (875, 480900), (916, 459375), (980, 429375), (1050, 400750), (1145, 367500), (1225, 343500), (1250, 336630), (1374, 306250), (1470, 286250), (1500, 280525), (1603, 262500), (1750, 240450), (1875, 224420), (2100, 200375), (2290, 183750), (2450, 171750), (2500, 168315), (2625, 160300), (2748, 153125), (2940, 143125), (3125, 134652), (3206, 131250), (3435, 122500), (3500, 120225), (3675, 114500), (3750, 112210), (4375, 96180), (4580, 91875), (4809, 87500), (4900, 85875), (5250, 80150), (5725, 73500), (6125, 68700), (6250, 67326), (6412, 65625), (6870, 61250), (7350, 57250), (7500, 56105), (8015, 52500), (8750, 48090), (9375, 44884), (9618, 43750), (10500, 40075), (11221, 37500), (11450, 36750), (12250, 34350), (12500, 33663), (13125, 32060), (13740, 30625), (14700, 28625), (16030, 26250), (17175, 24500), (17500, 24045), (18375, 22900), (18750, 22442), (19236, 21875)]