312798928

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{349}}^1$

素因数の和:540

約数の個数: 80

約数和(自身を含む): 680512000

約数和(自身を除く): 367713072

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 139, 208, 248, 278, 349, 403, 496, 556, 698, 806, 1112, 1396, 1612, 1807, 2224, 2792, 3224, 3614, 4309, 4537, 5584, 6448, 7228, 8618, 9074, 10819, 14456, 17236, 18148, 21638, 28912, 34472, 36296, 43276, 48511, 56017, 68944, 72592, 86552, 97022, 112034, 140647, 173104, 194044, 224068, 281294, 388088, 448136, 562588, 630643, 776176, 896272, 1125176, 1261286, 1503841, 2250352, 2522572, 3007682, 5045144, 6015364, 10090288, 12030728, 19549933, 24061456, 39099866, 78199732, 156399464, 312798928]

約数ペア:

[(1, 312798928), (2, 156399464), (4, 78199732), (8, 39099866), (13, 24061456), (16, 19549933), (26, 12030728), (31, 10090288), (52, 6015364), (62, 5045144), (104, 3007682), (124, 2522572), (139, 2250352), (208, 1503841), (248, 1261286), (278, 1125176), (349, 896272), (403, 776176), (496, 630643), (556, 562588), (698, 448136), (806, 388088), (1112, 281294), (1396, 224068), (1612, 194044), (1807, 173104), (2224, 140647), (2792, 112034), (3224, 97022), (3614, 86552), (4309, 72592), (4537, 68944), (5584, 56017), (6448, 48511), (7228, 43276), (8618, 36296), (9074, 34472), (10819, 28912), (14456, 21638), (17236, 18148)]