138980440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{347}}^1$

素因数の和:425

約数の個数: 128

約数和(自身を含む): 360806400

約数和(自身を除く): 221825960

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 31, 34, 38, 40, 62, 68, 76, 85, 95, 124, 136, 152, 155, 170, 190, 248, 310, 323, 340, 347, 380, 527, 589, 620, 646, 680, 694, 760, 1054, 1178, 1240, 1292, 1388, 1615, 1735, 2108, 2356, 2584, 2635, 2776, 2945, 3230, 3470, 4216, 4712, 5270, 5890, 5899, 6460, 6593, 6940, 10013, 10540, 10757, 11780, 11798, 12920, 13186, 13880, 20026, 21080, 21514, 23560, 23596, 26372, 29495, 32965, 40052, 43028, 47192, 50065, 52744, 53785, 58990, 65930, 80104, 86056, 100130, 107570, 112081, 117980, 131860, 182869, 200260, 204383, 215140, 224162, 235960, 263720, 365738, 400520, 408766, 430280, 448324, 560405, 731476, 817532, 896648, 914345, 1021915, 1120810, 1462952, 1635064, 1828690, 2043830, 2241620, 3474511, 3657380, 4087660, 4483240, 6949022, 7314760, 8175320, 13898044, 17372555, 27796088, 34745110, 69490220, 138980440]

約数ペア:

[(1, 138980440), (2, 69490220), (4, 34745110), (5, 27796088), (8, 17372555), (10, 13898044), (17, 8175320), (19, 7314760), (20, 6949022), (31, 4483240), (34, 4087660), (38, 3657380), (40, 3474511), (62, 2241620), (68, 2043830), (76, 1828690), (85, 1635064), (95, 1462952), (124, 1120810), (136, 1021915), (152, 914345), (155, 896648), (170, 817532), (190, 731476), (248, 560405), (310, 448324), (323, 430280), (340, 408766), (347, 400520), (380, 365738), (527, 263720), (589, 235960), (620, 224162), (646, 215140), (680, 204383), (694, 200260), (760, 182869), (1054, 131860), (1178, 117980), (1240, 112081), (1292, 107570), (1388, 100130), (1615, 86056), (1735, 80104), (2108, 65930), (2356, 58990), (2584, 53785), (2635, 52744), (2776, 50065), (2945, 47192), (3230, 43028), (3470, 40052), (4216, 32965), (4712, 29495), (5270, 26372), (5890, 23596), (5899, 23560), (6460, 21514), (6593, 21080), (6940, 20026), (10013, 13880), (10540, 13186), (10757, 12920), (11780, 11798)]