13000000

素因数分解:

$2^6\times 5^6\times {\mathrm{13}}^1$

素因数の和:55

約数の個数: 98

約数和(自身を含む): 34726118

約数和(自身を除く): 21726118

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 130, 160, 200, 208, 250, 260, 320, 325, 400, 416, 500, 520, 625, 650, 800, 832, 1000, 1040, 1250, 1300, 1600, 1625, 2000, 2080, 2500, 2600, 3125, 3250, 4000, 4160, 5000, 5200, 6250, 6500, 8000, 8125, 10000, 10400, 12500, 13000, 15625, 16250, 20000, 20800, 25000, 26000, 31250, 32500, 40000, 40625, 50000, 52000, 62500, 65000, 81250, 100000, 104000, 125000, 130000, 162500, 200000, 203125, 250000, 260000, 325000, 406250, 500000, 520000, 650000, 812500, 1000000, 1300000, 1625000, 2600000, 3250000, 6500000, 13000000]

約数ペア:

[(1, 13000000), (2, 6500000), (4, 3250000), (5, 2600000), (8, 1625000), (10, 1300000), (13, 1000000), (16, 812500), (20, 650000), (25, 520000), (26, 500000), (32, 406250), (40, 325000), (50, 260000), (52, 250000), (64, 203125), (65, 200000), (80, 162500), (100, 130000), (104, 125000), (125, 104000), (130, 100000), (160, 81250), (200, 65000), (208, 62500), (250, 52000), (260, 50000), (320, 40625), (325, 40000), (400, 32500), (416, 31250), (500, 26000), (520, 25000), (625, 20800), (650, 20000), (800, 16250), (832, 15625), (1000, 13000), (1040, 12500), (1250, 10400), (1300, 10000), (1600, 8125), (1625, 8000), (2000, 6500), (2080, 6250), (2500, 5200), (2600, 5000), (3125, 4160), (3250, 4000)]