25315000

素因数分解:

$2^3\times 5^4\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:170

約数の個数: 80

約数和(自身を含む): 61011720

約数和(自身を除く): 35696720

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 83, 100, 122, 125, 166, 200, 244, 250, 305, 332, 415, 488, 500, 610, 625, 664, 830, 1000, 1220, 1250, 1525, 1660, 2075, 2440, 2500, 3050, 3320, 4150, 5000, 5063, 6100, 7625, 8300, 10126, 10375, 12200, 15250, 16600, 20252, 20750, 25315, 30500, 38125, 40504, 41500, 50630, 51875, 61000, 76250, 83000, 101260, 103750, 126575, 152500, 202520, 207500, 253150, 305000, 415000, 506300, 632875, 1012600, 1265750, 2531500, 3164375, 5063000, 6328750, 12657500, 25315000]

約数ペア:

[(1, 25315000), (2, 12657500), (4, 6328750), (5, 5063000), (8, 3164375), (10, 2531500), (20, 1265750), (25, 1012600), (40, 632875), (50, 506300), (61, 415000), (83, 305000), (100, 253150), (122, 207500), (125, 202520), (166, 152500), (200, 126575), (244, 103750), (250, 101260), (305, 83000), (332, 76250), (415, 61000), (488, 51875), (500, 50630), (610, 41500), (625, 40504), (664, 38125), (830, 30500), (1000, 25315), (1220, 20750), (1250, 20252), (1525, 16600), (1660, 15250), (2075, 12200), (2440, 10375), (2500, 10126), (3050, 8300), (3320, 7625), (4150, 6100), (5000, 5063)]