19928194720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{383}}^1\times {\mathrm{46457}}^1$

素因数の和:46862

約数の個数: 96

約数和(自身を含む): 53947772928

約数和(自身を除く): 34019578208

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 383, 560, 766, 1120, 1532, 1915, 2681, 3064, 3830, 5362, 6128, 7660, 10724, 12256, 13405, 15320, 21448, 26810, 30640, 42896, 46457, 53620, 61280, 85792, 92914, 107240, 185828, 214480, 232285, 325199, 371656, 428960, 464570, 650398, 743312, 929140, 1300796, 1486624, 1625995, 1858280, 2601592, 3251990, 3716560, 5203184, 6503980, 7433120, 10406368, 13007960, 17793031, 26015920, 35586062, 52031840, 71172124, 88965155, 124551217, 142344248, 177930310, 249102434, 284688496, 355860620, 498204868, 569376992, 622756085, 711721240, 996409736, 1245512170, 1423442480, 1992819472, 2491024340, 2846884960, 3985638944, 4982048680, 9964097360, 19928194720]

約数ペア:

[(1, 19928194720), (2, 9964097360), (4, 4982048680), (5, 3985638944), (7, 2846884960), (8, 2491024340), (10, 1992819472), (14, 1423442480), (16, 1245512170), (20, 996409736), (28, 711721240), (32, 622756085), (35, 569376992), (40, 498204868), (56, 355860620), (70, 284688496), (80, 249102434), (112, 177930310), (140, 142344248), (160, 124551217), (224, 88965155), (280, 71172124), (383, 52031840), (560, 35586062), (766, 26015920), (1120, 17793031), (1532, 13007960), (1915, 10406368), (2681, 7433120), (3064, 6503980), (3830, 5203184), (5362, 3716560), (6128, 3251990), (7660, 2601592), (10724, 1858280), (12256, 1625995), (13405, 1486624), (15320, 1300796), (21448, 929140), (26810, 743312), (30640, 650398), (42896, 464570), (46457, 428960), (53620, 371656), (61280, 325199), (85792, 232285), (92914, 214480), (107240, 185828)]