20208500000

素因数分解:

$2^5\times 5^6\times {\mathrm{13}}^1\times {\mathrm{3109}}^1$

素因数の和:3162

約数の個数: 168

約数和(自身を含む): 53573923620

約数和(自身を除く): 33365423620

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 125, 130, 160, 200, 208, 250, 260, 325, 400, 416, 500, 520, 625, 650, 800, 1000, 1040, 1250, 1300, 1625, 2000, 2080, 2500, 2600, 3109, 3125, 3250, 4000, 5000, 5200, 6218, 6250, 6500, 8125, 10000, 10400, 12436, 12500, 13000, 15545, 15625, 16250, 20000, 24872, 25000, 26000, 31090, 31250, 32500, 40417, 40625, 49744, 50000, 52000, 62180, 62500, 65000, 77725, 80834, 81250, 99488, 100000, 124360, 125000, 130000, 155450, 161668, 162500, 202085, 203125, 248720, 250000, 260000, 310900, 323336, 325000, 388625, 404170, 406250, 497440, 500000, 621800, 646672, 650000, 777250, 808340, 812500, 1010425, 1243600, 1293344, 1300000, 1554500, 1616680, 1625000, 1943125, 2020850, 2487200, 3109000, 3233360, 3250000, 3886250, 4041700, 5052125, 6218000, 6466720, 6500000, 7772500, 8083400, 9715625, 10104250, 12436000, 15545000, 16166800, 19431250, 20208500, 25260625, 31090000, 32333600, 38862500, 40417000, 48578125, 50521250, 62180000, 77725000, 80834000, 97156250, 101042500, 126303125, 155450000, 161668000, 194312500, 202085000, 252606250, 310900000, 388625000, 404170000, 505212500, 631515625, 777250000, 808340000, 1010425000, 1263031250, 1554500000, 2020850000, 2526062500, 4041700000, 5052125000, 10104250000, 20208500000]

約数ペア:

[(1, 20208500000), (2, 10104250000), (4, 5052125000), (5, 4041700000), (8, 2526062500), (10, 2020850000), (13, 1554500000), (16, 1263031250), (20, 1010425000), (25, 808340000), (26, 777250000), (32, 631515625), (40, 505212500), (50, 404170000), (52, 388625000), (65, 310900000), (80, 252606250), (100, 202085000), (104, 194312500), (125, 161668000), (130, 155450000), (160, 126303125), (200, 101042500), (208, 97156250), (250, 80834000), (260, 77725000), (325, 62180000), (400, 50521250), (416, 48578125), (500, 40417000), (520, 38862500), (625, 32333600), (650, 31090000), (800, 25260625), (1000, 20208500), (1040, 19431250), (1250, 16166800), (1300, 15545000), (1625, 12436000), (2000, 10104250), (2080, 9715625), (2500, 8083400), (2600, 7772500), (3109, 6500000), (3125, 6466720), (3250, 6218000), (4000, 5052125), (5000, 4041700), (5200, 3886250), (6218, 3250000), (6250, 3233360), (6500, 3109000), (8125, 2487200), (10000, 2020850), (10400, 1943125), (12436, 1625000), (12500, 1616680), (13000, 1554500), (15545, 1300000), (15625, 1293344), (16250, 1243600), (20000, 1010425), (24872, 812500), (25000, 808340), (26000, 777250), (31090, 650000), (31250, 646672), (32500, 621800), (40417, 500000), (40625, 497440), (49744, 406250), (50000, 404170), (52000, 388625), (62180, 325000), (62500, 323336), (65000, 310900), (77725, 260000), (80834, 250000), (81250, 248720), (99488, 203125), (100000, 202085), (124360, 162500), (125000, 161668), (130000, 155450)]