81863250

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{503}}^1$

素因数の和:561

約数の個数: 128

約数和(自身を含む): 241532928

約数和(自身を除く): 159669678

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 31, 35, 42, 50, 62, 70, 75, 93, 105, 125, 150, 155, 175, 186, 210, 217, 250, 310, 350, 375, 434, 465, 503, 525, 651, 750, 775, 875, 930, 1006, 1050, 1085, 1302, 1509, 1550, 1750, 2170, 2325, 2515, 2625, 3018, 3255, 3521, 3875, 4650, 5030, 5250, 5425, 6510, 7042, 7545, 7750, 10563, 10850, 11625, 12575, 15090, 15593, 16275, 17605, 21126, 23250, 25150, 27125, 31186, 32550, 35210, 37725, 46779, 52815, 54250, 62875, 75450, 77965, 81375, 88025, 93558, 105630, 109151, 125750, 155930, 162750, 176050, 188625, 218302, 233895, 264075, 327453, 377250, 389825, 440125, 467790, 528150, 545755, 654906, 779650, 880250, 1091510, 1169475, 1320375, 1637265, 1949125, 2338950, 2640750, 2728775, 3274530, 3898250, 5457550, 5847375, 8186325, 11694750, 13643875, 16372650, 27287750, 40931625, 81863250]

約数ペア:

[(1, 81863250), (2, 40931625), (3, 27287750), (5, 16372650), (6, 13643875), (7, 11694750), (10, 8186325), (14, 5847375), (15, 5457550), (21, 3898250), (25, 3274530), (30, 2728775), (31, 2640750), (35, 2338950), (42, 1949125), (50, 1637265), (62, 1320375), (70, 1169475), (75, 1091510), (93, 880250), (105, 779650), (125, 654906), (150, 545755), (155, 528150), (175, 467790), (186, 440125), (210, 389825), (217, 377250), (250, 327453), (310, 264075), (350, 233895), (375, 218302), (434, 188625), (465, 176050), (503, 162750), (525, 155930), (651, 125750), (750, 109151), (775, 105630), (875, 93558), (930, 88025), (1006, 81375), (1050, 77965), (1085, 75450), (1302, 62875), (1509, 54250), (1550, 52815), (1750, 46779), (2170, 37725), (2325, 35210), (2515, 32550), (2625, 31186), (3018, 27125), (3255, 25150), (3521, 23250), (3875, 21126), (4650, 17605), (5030, 16275), (5250, 15593), (5425, 15090), (6510, 12575), (7042, 11625), (7545, 10850), (7750, 10563)]