21039970400

素因数分解:

$2^5\times 5^2\times {\mathrm{229}}^1\times {\mathrm{114847}}^1$

素因数の和:115096

約数の個数: 72

約数和(自身を含む): 51588573120

約数和(自身を除く): 30548602720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 229, 400, 458, 800, 916, 1145, 1832, 2290, 3664, 4580, 5725, 7328, 9160, 11450, 18320, 22900, 36640, 45800, 91600, 114847, 183200, 229694, 459388, 574235, 918776, 1148470, 1837552, 2296940, 2871175, 3675104, 4593880, 5742350, 9187760, 11484700, 18375520, 22969400, 26299963, 45938800, 52599926, 91877600, 105199852, 131499815, 210399704, 262999630, 420799408, 525999260, 657499075, 841598816, 1051998520, 1314998150, 2103997040, 2629996300, 4207994080, 5259992600, 10519985200, 21039970400]

約数ペア:

[(1, 21039970400), (2, 10519985200), (4, 5259992600), (5, 4207994080), (8, 2629996300), (10, 2103997040), (16, 1314998150), (20, 1051998520), (25, 841598816), (32, 657499075), (40, 525999260), (50, 420799408), (80, 262999630), (100, 210399704), (160, 131499815), (200, 105199852), (229, 91877600), (400, 52599926), (458, 45938800), (800, 26299963), (916, 22969400), (1145, 18375520), (1832, 11484700), (2290, 9187760), (3664, 5742350), (4580, 4593880), (5725, 3675104), (7328, 2871175), (9160, 2296940), (11450, 1837552), (18320, 1148470), (22900, 918776), (36640, 574235), (45800, 459388), (91600, 229694), (114847, 183200)]