28723800

素因数分解:

$2^3\times 3^1\times 5^2\times 7^2\times {\mathrm{977}}^1$

素因数の和:1010

約数の個数: 144

約数和(自身を含む): 103687560

約数和(自身を除く): 74963760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 49, 50, 56, 60, 70, 75, 84, 98, 100, 105, 120, 140, 147, 150, 168, 175, 196, 200, 210, 245, 280, 294, 300, 350, 392, 420, 490, 525, 588, 600, 700, 735, 840, 977, 980, 1050, 1176, 1225, 1400, 1470, 1954, 1960, 2100, 2450, 2931, 2940, 3675, 3908, 4200, 4885, 4900, 5862, 5880, 6839, 7350, 7816, 9770, 9800, 11724, 13678, 14655, 14700, 19540, 20517, 23448, 24425, 27356, 29310, 29400, 34195, 39080, 41034, 47873, 48850, 54712, 58620, 68390, 73275, 82068, 95746, 97700, 102585, 117240, 136780, 143619, 146550, 164136, 170975, 191492, 195400, 205170, 239365, 273560, 287238, 293100, 341950, 382984, 410340, 478730, 512925, 574476, 586200, 683900, 718095, 820680, 957460, 1025850, 1148952, 1196825, 1367800, 1436190, 1914920, 2051700, 2393650, 2872380, 3590475, 4103400, 4787300, 5744760, 7180950, 9574600, 14361900, 28723800]

約数ペア:

[(1, 28723800), (2, 14361900), (3, 9574600), (4, 7180950), (5, 5744760), (6, 4787300), (7, 4103400), (8, 3590475), (10, 2872380), (12, 2393650), (14, 2051700), (15, 1914920), (20, 1436190), (21, 1367800), (24, 1196825), (25, 1148952), (28, 1025850), (30, 957460), (35, 820680), (40, 718095), (42, 683900), (49, 586200), (50, 574476), (56, 512925), (60, 478730), (70, 410340), (75, 382984), (84, 341950), (98, 293100), (100, 287238), (105, 273560), (120, 239365), (140, 205170), (147, 195400), (150, 191492), (168, 170975), (175, 164136), (196, 146550), (200, 143619), (210, 136780), (245, 117240), (280, 102585), (294, 97700), (300, 95746), (350, 82068), (392, 73275), (420, 68390), (490, 58620), (525, 54712), (588, 48850), (600, 47873), (700, 41034), (735, 39080), (840, 34195), (977, 29400), (980, 29310), (1050, 27356), (1176, 24425), (1225, 23448), (1400, 20517), (1470, 19540), (1954, 14700), (1960, 14655), (2100, 13678), (2450, 11724), (2931, 9800), (2940, 9770), (3675, 7816), (3908, 7350), (4200, 6839), (4885, 5880), (4900, 5862)]