28609900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{839}}^1$

素因数の和:895

約数の個数: 72

約数和(自身を含む): 69995520

約数和(自身を除く): 41385620

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, 775, 839, 1100, 1364, 1550, 1678, 1705, 3100, 3356, 3410, 4195, 6820, 8390, 8525, 9229, 16780, 17050, 18458, 20975, 26009, 34100, 36916, 41950, 46145, 52018, 83900, 92290, 104036, 130045, 184580, 230725, 260090, 286099, 461450, 520180, 572198, 650225, 922900, 1144396, 1300450, 1430495, 2600900, 2860990, 5721980, 7152475, 14304950, 28609900]

約数ペア:

[(1, 28609900), (2, 14304950), (4, 7152475), (5, 5721980), (10, 2860990), (11, 2600900), (20, 1430495), (22, 1300450), (25, 1144396), (31, 922900), (44, 650225), (50, 572198), (55, 520180), (62, 461450), (100, 286099), (110, 260090), (124, 230725), (155, 184580), (220, 130045), (275, 104036), (310, 92290), (341, 83900), (550, 52018), (620, 46145), (682, 41950), (775, 36916), (839, 34100), (1100, 26009), (1364, 20975), (1550, 18458), (1678, 17050), (1705, 16780), (3100, 9229), (3356, 8525), (3410, 8390), (4195, 6820)]