18824440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:125

約数の個数: 128

約数和(自身を含む): 49766400

約数和(自身を除く): 30941960

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 31, 34, 38, 40, 47, 62, 68, 76, 85, 94, 95, 124, 136, 152, 155, 170, 188, 190, 235, 248, 310, 323, 340, 376, 380, 470, 527, 589, 620, 646, 680, 760, 799, 893, 940, 1054, 1178, 1240, 1292, 1457, 1598, 1615, 1786, 1880, 2108, 2356, 2584, 2635, 2914, 2945, 3196, 3230, 3572, 3995, 4216, 4465, 4712, 5270, 5828, 5890, 6392, 6460, 7144, 7285, 7990, 8930, 10013, 10540, 11656, 11780, 12920, 14570, 15181, 15980, 17860, 20026, 21080, 23560, 24769, 27683, 29140, 30362, 31960, 35720, 40052, 49538, 50065, 55366, 58280, 60724, 75905, 80104, 99076, 100130, 110732, 121448, 123845, 138415, 151810, 198152, 200260, 221464, 247690, 276830, 303620, 400520, 470611, 495380, 553660, 607240, 941222, 990760, 1107320, 1882444, 2353055, 3764888, 4706110, 9412220, 18824440]

約数ペア:

[(1, 18824440), (2, 9412220), (4, 4706110), (5, 3764888), (8, 2353055), (10, 1882444), (17, 1107320), (19, 990760), (20, 941222), (31, 607240), (34, 553660), (38, 495380), (40, 470611), (47, 400520), (62, 303620), (68, 276830), (76, 247690), (85, 221464), (94, 200260), (95, 198152), (124, 151810), (136, 138415), (152, 123845), (155, 121448), (170, 110732), (188, 100130), (190, 99076), (235, 80104), (248, 75905), (310, 60724), (323, 58280), (340, 55366), (376, 50065), (380, 49538), (470, 40052), (527, 35720), (589, 31960), (620, 30362), (646, 29140), (680, 27683), (760, 24769), (799, 23560), (893, 21080), (940, 20026), (1054, 17860), (1178, 15980), (1240, 15181), (1292, 14570), (1457, 12920), (1598, 11780), (1615, 11656), (1786, 10540), (1880, 10013), (2108, 8930), (2356, 7990), (2584, 7285), (2635, 7144), (2914, 6460), (2945, 6392), (3196, 5890), (3230, 5828), (3572, 5270), (3995, 4712), (4216, 4465)]