195821600

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1$

素因数の和:1043

約数の個数: 144

約数和(自身を含む): 542465280

約数和(自身を除く): 346643680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 25, 26, 32, 38, 40, 50, 52, 65, 76, 80, 95, 100, 104, 130, 152, 160, 190, 200, 208, 247, 260, 304, 325, 380, 400, 416, 475, 494, 520, 608, 650, 760, 800, 950, 988, 991, 1040, 1235, 1300, 1520, 1900, 1976, 1982, 2080, 2470, 2600, 3040, 3800, 3952, 3964, 4940, 4955, 5200, 6175, 7600, 7904, 7928, 9880, 9910, 10400, 12350, 12883, 15200, 15856, 18829, 19760, 19820, 24700, 24775, 25766, 31712, 37658, 39520, 39640, 49400, 49550, 51532, 64415, 75316, 79280, 94145, 98800, 99100, 103064, 128830, 150632, 158560, 188290, 197600, 198200, 206128, 244777, 257660, 301264, 322075, 376580, 396400, 412256, 470725, 489554, 515320, 602528, 644150, 753160, 792800, 941450, 979108, 1030640, 1223885, 1288300, 1506320, 1882900, 1958216, 2061280, 2447770, 2576600, 3012640, 3765800, 3916432, 4895540, 5153200, 6119425, 7531600, 7832864, 9791080, 10306400, 12238850, 15063200, 19582160, 24477700, 39164320, 48955400, 97910800, 195821600]

約数ペア:

[(1, 195821600), (2, 97910800), (4, 48955400), (5, 39164320), (8, 24477700), (10, 19582160), (13, 15063200), (16, 12238850), (19, 10306400), (20, 9791080), (25, 7832864), (26, 7531600), (32, 6119425), (38, 5153200), (40, 4895540), (50, 3916432), (52, 3765800), (65, 3012640), (76, 2576600), (80, 2447770), (95, 2061280), (100, 1958216), (104, 1882900), (130, 1506320), (152, 1288300), (160, 1223885), (190, 1030640), (200, 979108), (208, 941450), (247, 792800), (260, 753160), (304, 644150), (325, 602528), (380, 515320), (400, 489554), (416, 470725), (475, 412256), (494, 396400), (520, 376580), (608, 322075), (650, 301264), (760, 257660), (800, 244777), (950, 206128), (988, 198200), (991, 197600), (1040, 188290), (1235, 158560), (1300, 150632), (1520, 128830), (1900, 103064), (1976, 99100), (1982, 98800), (2080, 94145), (2470, 79280), (2600, 75316), (3040, 64415), (3800, 51532), (3952, 49550), (3964, 49400), (4940, 39640), (4955, 39520), (5200, 37658), (6175, 31712), (7600, 25766), (7904, 24775), (7928, 24700), (9880, 19820), (9910, 19760), (10400, 18829), (12350, 15856), (12883, 15200)]