30500000

素因数分解:

$2^5\times 5^6\times {\mathrm{61}}^1$

素因数の和:101

約数の個数: 84

約数和(自身を含む): 76288086

約数和(自身を除く): 45788086

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 61, 80, 100, 122, 125, 160, 200, 244, 250, 305, 400, 488, 500, 610, 625, 800, 976, 1000, 1220, 1250, 1525, 1952, 2000, 2440, 2500, 3050, 3125, 4000, 4880, 5000, 6100, 6250, 7625, 9760, 10000, 12200, 12500, 15250, 15625, 20000, 24400, 25000, 30500, 31250, 38125, 48800, 50000, 61000, 62500, 76250, 100000, 122000, 125000, 152500, 190625, 244000, 250000, 305000, 381250, 500000, 610000, 762500, 953125, 1220000, 1525000, 1906250, 3050000, 3812500, 6100000, 7625000, 15250000, 30500000]

約数ペア:

[(1, 30500000), (2, 15250000), (4, 7625000), (5, 6100000), (8, 3812500), (10, 3050000), (16, 1906250), (20, 1525000), (25, 1220000), (32, 953125), (40, 762500), (50, 610000), (61, 500000), (80, 381250), (100, 305000), (122, 250000), (125, 244000), (160, 190625), (200, 152500), (244, 125000), (250, 122000), (305, 100000), (400, 76250), (488, 62500), (500, 61000), (610, 50000), (625, 48800), (800, 38125), (976, 31250), (1000, 30500), (1220, 25000), (1250, 24400), (1525, 20000), (1952, 15625), (2000, 15250), (2440, 12500), (2500, 12200), (3050, 10000), (3125, 9760), (4000, 7625), (4880, 6250), (5000, 6100)]