19517940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1$

素因数の和:486

約数の個数: 144

約数和(自身を含む): 67267200

約数和(自身を除く): 47749260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 36, 38, 39, 45, 52, 57, 60, 65, 76, 78, 90, 95, 114, 117, 130, 156, 171, 180, 190, 195, 228, 234, 247, 260, 285, 342, 380, 390, 439, 468, 494, 570, 585, 684, 741, 780, 855, 878, 988, 1140, 1170, 1235, 1317, 1482, 1710, 1756, 2195, 2223, 2340, 2470, 2634, 2964, 3420, 3705, 3951, 4390, 4446, 4940, 5268, 5707, 6585, 7410, 7902, 8341, 8780, 8892, 11115, 11414, 13170, 14820, 15804, 16682, 17121, 19755, 22230, 22828, 25023, 26340, 28535, 33364, 34242, 39510, 41705, 44460, 50046, 51363, 57070, 68484, 75069, 79020, 83410, 85605, 100092, 102726, 108433, 114140, 125115, 150138, 166820, 171210, 205452, 216866, 250230, 256815, 300276, 325299, 342420, 375345, 433732, 500460, 513630, 542165, 650598, 750690, 975897, 1027260, 1084330, 1301196, 1501380, 1626495, 1951794, 2168660, 3252990, 3903588, 4879485, 6505980, 9758970, 19517940]

約数ペア:

[(1, 19517940), (2, 9758970), (3, 6505980), (4, 4879485), (5, 3903588), (6, 3252990), (9, 2168660), (10, 1951794), (12, 1626495), (13, 1501380), (15, 1301196), (18, 1084330), (19, 1027260), (20, 975897), (26, 750690), (30, 650598), (36, 542165), (38, 513630), (39, 500460), (45, 433732), (52, 375345), (57, 342420), (60, 325299), (65, 300276), (76, 256815), (78, 250230), (90, 216866), (95, 205452), (114, 171210), (117, 166820), (130, 150138), (156, 125115), (171, 114140), (180, 108433), (190, 102726), (195, 100092), (228, 85605), (234, 83410), (247, 79020), (260, 75069), (285, 68484), (342, 57070), (380, 51363), (390, 50046), (439, 44460), (468, 41705), (494, 39510), (570, 34242), (585, 33364), (684, 28535), (741, 26340), (780, 25023), (855, 22828), (878, 22230), (988, 19755), (1140, 17121), (1170, 16682), (1235, 15804), (1317, 14820), (1482, 13170), (1710, 11414), (1756, 11115), (2195, 8892), (2223, 8780), (2340, 8341), (2470, 7902), (2634, 7410), (2964, 6585), (3420, 5707), (3705, 5268), (3951, 4940), (4390, 4446)]