31561400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:289

約数の個数: 96

約数和(自身を含む): 80724000

約数和(自身を除く): 49162600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 61, 65, 100, 104, 122, 130, 199, 200, 244, 260, 305, 325, 398, 488, 520, 610, 650, 793, 796, 995, 1220, 1300, 1525, 1586, 1592, 1990, 2440, 2587, 2600, 3050, 3172, 3965, 3980, 4975, 5174, 6100, 6344, 7930, 7960, 9950, 10348, 12139, 12200, 12935, 15860, 19825, 19900, 20696, 24278, 25870, 31720, 39650, 39800, 48556, 51740, 60695, 64675, 79300, 97112, 103480, 121390, 129350, 157807, 158600, 242780, 258700, 303475, 315614, 485560, 517400, 606950, 631228, 789035, 1213900, 1262456, 1578070, 2427800, 3156140, 3945175, 6312280, 7890350, 15780700, 31561400]

約数ペア:

[(1, 31561400), (2, 15780700), (4, 7890350), (5, 6312280), (8, 3945175), (10, 3156140), (13, 2427800), (20, 1578070), (25, 1262456), (26, 1213900), (40, 789035), (50, 631228), (52, 606950), (61, 517400), (65, 485560), (100, 315614), (104, 303475), (122, 258700), (130, 242780), (199, 158600), (200, 157807), (244, 129350), (260, 121390), (305, 103480), (325, 97112), (398, 79300), (488, 64675), (520, 60695), (610, 51740), (650, 48556), (793, 39800), (796, 39650), (995, 31720), (1220, 25870), (1300, 24278), (1525, 20696), (1586, 19900), (1592, 19825), (1990, 15860), (2440, 12935), (2587, 12200), (2600, 12139), (3050, 10348), (3172, 9950), (3965, 7960), (3980, 7930), (4975, 6344), (5174, 6100)]