19000280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{599}}^1$

素因数の和:684

約数の個数: 64

約数和(自身を含む): 46872000

約数和(自身を除く): 27871720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 244, 260, 305, 488, 520, 599, 610, 793, 1198, 1220, 1586, 2396, 2440, 2995, 3172, 3965, 4792, 5990, 6344, 7787, 7930, 11980, 15574, 15860, 23960, 31148, 31720, 36539, 38935, 62296, 73078, 77870, 146156, 155740, 182695, 292312, 311480, 365390, 475007, 730780, 950014, 1461560, 1900028, 2375035, 3800056, 4750070, 9500140, 19000280]

約数ペア:

[(1, 19000280), (2, 9500140), (4, 4750070), (5, 3800056), (8, 2375035), (10, 1900028), (13, 1461560), (20, 950014), (26, 730780), (40, 475007), (52, 365390), (61, 311480), (65, 292312), (104, 182695), (122, 155740), (130, 146156), (244, 77870), (260, 73078), (305, 62296), (488, 38935), (520, 36539), (599, 31720), (610, 31148), (793, 23960), (1198, 15860), (1220, 15574), (1586, 11980), (2396, 7930), (2440, 7787), (2995, 6344), (3172, 5990), (3965, 4792)]