28731000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:242

約数の個数: 128

約数和(自身を含む): 91690560

約数和(自身を除く): 62959560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 61, 75, 100, 120, 122, 125, 150, 157, 183, 200, 244, 250, 300, 305, 314, 366, 375, 471, 488, 500, 600, 610, 628, 732, 750, 785, 915, 942, 1000, 1220, 1256, 1464, 1500, 1525, 1570, 1830, 1884, 2355, 2440, 3000, 3050, 3140, 3660, 3768, 3925, 4575, 4710, 6100, 6280, 7320, 7625, 7850, 9150, 9420, 9577, 11775, 12200, 15250, 15700, 18300, 18840, 19154, 19625, 22875, 23550, 28731, 30500, 31400, 36600, 38308, 39250, 45750, 47100, 47885, 57462, 58875, 61000, 76616, 78500, 91500, 94200, 95770, 114924, 117750, 143655, 157000, 183000, 191540, 229848, 235500, 239425, 287310, 383080, 471000, 478850, 574620, 718275, 957700, 1149240, 1197125, 1436550, 1915400, 2394250, 2873100, 3591375, 4788500, 5746200, 7182750, 9577000, 14365500, 28731000]

約数ペア:

[(1, 28731000), (2, 14365500), (3, 9577000), (4, 7182750), (5, 5746200), (6, 4788500), (8, 3591375), (10, 2873100), (12, 2394250), (15, 1915400), (20, 1436550), (24, 1197125), (25, 1149240), (30, 957700), (40, 718275), (50, 574620), (60, 478850), (61, 471000), (75, 383080), (100, 287310), (120, 239425), (122, 235500), (125, 229848), (150, 191540), (157, 183000), (183, 157000), (200, 143655), (244, 117750), (250, 114924), (300, 95770), (305, 94200), (314, 91500), (366, 78500), (375, 76616), (471, 61000), (488, 58875), (500, 57462), (600, 47885), (610, 47100), (628, 45750), (732, 39250), (750, 38308), (785, 36600), (915, 31400), (942, 30500), (1000, 28731), (1220, 23550), (1256, 22875), (1464, 19625), (1500, 19154), (1525, 18840), (1570, 18300), (1830, 15700), (1884, 15250), (2355, 12200), (2440, 11775), (3000, 9577), (3050, 9420), (3140, 9150), (3660, 7850), (3768, 7625), (3925, 7320), (4575, 6280), (4710, 6100)]