18018750

素因数分解:

$2^1\times 3^1\times 5^5\times {\mathrm{31}}^2$

素因数の和:92

約数の個数: 72

約数和(自身を含む): 46543896

約数和(自身を除く): 28525146

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 31, 50, 62, 75, 93, 125, 150, 155, 186, 250, 310, 375, 465, 625, 750, 775, 930, 961, 1250, 1550, 1875, 1922, 2325, 2883, 3125, 3750, 3875, 4650, 4805, 5766, 6250, 7750, 9375, 9610, 11625, 14415, 18750, 19375, 23250, 24025, 28830, 38750, 48050, 58125, 72075, 96875, 116250, 120125, 144150, 193750, 240250, 290625, 360375, 581250, 600625, 720750, 1201250, 1801875, 3003125, 3603750, 6006250, 9009375, 18018750]

約数ペア:

[(1, 18018750), (2, 9009375), (3, 6006250), (5, 3603750), (6, 3003125), (10, 1801875), (15, 1201250), (25, 720750), (30, 600625), (31, 581250), (50, 360375), (62, 290625), (75, 240250), (93, 193750), (125, 144150), (150, 120125), (155, 116250), (186, 96875), (250, 72075), (310, 58125), (375, 48050), (465, 38750), (625, 28830), (750, 24025), (775, 23250), (930, 19375), (961, 18750), (1250, 14415), (1550, 11625), (1875, 9610), (1922, 9375), (2325, 7750), (2883, 6250), (3125, 5766), (3750, 4805), (3875, 4650)]