25199900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{739}}^1$

素因数の和:795

約数の個数: 72

約数和(自身を含む): 61662720

約数和(自身を除く): 36462820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 31, 44, 50, 55, 62, 100, 110, 124, 155, 220, 275, 310, 341, 550, 620, 682, 739, 775, 1100, 1364, 1478, 1550, 1705, 2956, 3100, 3410, 3695, 6820, 7390, 8129, 8525, 14780, 16258, 17050, 18475, 22909, 32516, 34100, 36950, 40645, 45818, 73900, 81290, 91636, 114545, 162580, 203225, 229090, 251999, 406450, 458180, 503998, 572725, 812900, 1007996, 1145450, 1259995, 2290900, 2519990, 5039980, 6299975, 12599950, 25199900]

約数ペア:

[(1, 25199900), (2, 12599950), (4, 6299975), (5, 5039980), (10, 2519990), (11, 2290900), (20, 1259995), (22, 1145450), (25, 1007996), (31, 812900), (44, 572725), (50, 503998), (55, 458180), (62, 406450), (100, 251999), (110, 229090), (124, 203225), (155, 162580), (220, 114545), (275, 91636), (310, 81290), (341, 73900), (550, 45818), (620, 40645), (682, 36950), (739, 34100), (775, 32516), (1100, 22909), (1364, 18475), (1478, 17050), (1550, 16258), (1705, 14780), (2956, 8525), (3100, 8129), (3410, 7390), (3695, 6820)]