17979750

素因数分解:

$2^1\times 3^2\times 5^3\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:215

約数の個数: 96

約数和(自身を含む): 49791456

約数和(自身を除く): 31811706

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 61, 75, 90, 122, 125, 131, 150, 183, 225, 250, 262, 305, 366, 375, 393, 450, 549, 610, 655, 750, 786, 915, 1098, 1125, 1179, 1310, 1525, 1830, 1965, 2250, 2358, 2745, 3050, 3275, 3930, 4575, 5490, 5895, 6550, 7625, 7991, 9150, 9825, 11790, 13725, 15250, 15982, 16375, 19650, 22875, 23973, 27450, 29475, 32750, 39955, 45750, 47946, 49125, 58950, 68625, 71919, 79910, 98250, 119865, 137250, 143838, 147375, 199775, 239730, 294750, 359595, 399550, 599325, 719190, 998875, 1198650, 1797975, 1997750, 2996625, 3595950, 5993250, 8989875, 17979750]

約数ペア:

[(1, 17979750), (2, 8989875), (3, 5993250), (5, 3595950), (6, 2996625), (9, 1997750), (10, 1797975), (15, 1198650), (18, 998875), (25, 719190), (30, 599325), (45, 399550), (50, 359595), (61, 294750), (75, 239730), (90, 199775), (122, 147375), (125, 143838), (131, 137250), (150, 119865), (183, 98250), (225, 79910), (250, 71919), (262, 68625), (305, 58950), (366, 49125), (375, 47946), (393, 45750), (450, 39955), (549, 32750), (610, 29475), (655, 27450), (750, 23973), (786, 22875), (915, 19650), (1098, 16375), (1125, 15982), (1179, 15250), (1310, 13725), (1525, 11790), (1830, 9825), (1965, 9150), (2250, 7991), (2358, 7625), (2745, 6550), (3050, 5895), (3275, 5490), (3930, 4575)]