20587500

素因数分解:

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

素因数の和:99

約数の個数: 144

約数和(自身を含む): 67808160

約数和(自身を除く): 47220660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 61, 75, 90, 100, 108, 122, 125, 135, 150, 180, 183, 225, 244, 250, 270, 300, 305, 366, 375, 450, 500, 540, 549, 610, 625, 675, 732, 750, 900, 915, 1098, 1125, 1220, 1250, 1350, 1500, 1525, 1647, 1830, 1875, 2196, 2250, 2500, 2700, 2745, 3050, 3125, 3294, 3375, 3660, 3750, 4500, 4575, 5490, 5625, 6100, 6250, 6588, 6750, 7500, 7625, 8235, 9150, 9375, 10980, 11250, 12500, 13500, 13725, 15250, 16470, 16875, 18300, 18750, 22500, 22875, 27450, 28125, 30500, 32940, 33750, 37500, 38125, 41175, 45750, 54900, 56250, 67500, 68625, 76250, 82350, 84375, 91500, 112500, 114375, 137250, 152500, 164700, 168750, 190625, 205875, 228750, 274500, 337500, 343125, 381250, 411750, 457500, 571875, 686250, 762500, 823500, 1029375, 1143750, 1372500, 1715625, 2058750, 2287500, 3431250, 4117500, 5146875, 6862500, 10293750, 20587500]

約数ペア:

[(1, 20587500), (2, 10293750), (3, 6862500), (4, 5146875), (5, 4117500), (6, 3431250), (9, 2287500), (10, 2058750), (12, 1715625), (15, 1372500), (18, 1143750), (20, 1029375), (25, 823500), (27, 762500), (30, 686250), (36, 571875), (45, 457500), (50, 411750), (54, 381250), (60, 343125), (61, 337500), (75, 274500), (90, 228750), (100, 205875), (108, 190625), (122, 168750), (125, 164700), (135, 152500), (150, 137250), (180, 114375), (183, 112500), (225, 91500), (244, 84375), (250, 82350), (270, 76250), (300, 68625), (305, 67500), (366, 56250), (375, 54900), (450, 45750), (500, 41175), (540, 38125), (549, 37500), (610, 33750), (625, 32940), (675, 30500), (732, 28125), (750, 27450), (900, 22875), (915, 22500), (1098, 18750), (1125, 18300), (1220, 16875), (1250, 16470), (1350, 15250), (1500, 13725), (1525, 13500), (1647, 12500), (1830, 11250), (1875, 10980), (2196, 9375), (2250, 9150), (2500, 8235), (2700, 7625), (2745, 7500), (3050, 6750), (3125, 6588), (3294, 6250), (3375, 6100), (3660, 5625), (3750, 5490), (4500, 4575)]