981407240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{2621}}^1$

素因数の和:2703

約数の個数: 128

約数和(自身を含む): 2582565120

約数和(自身を除く): 1601157880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 37, 40, 44, 46, 55, 74, 88, 92, 110, 115, 148, 184, 185, 220, 230, 253, 296, 370, 407, 440, 460, 506, 740, 814, 851, 920, 1012, 1265, 1480, 1628, 1702, 2024, 2035, 2530, 2621, 3256, 3404, 4070, 4255, 5060, 5242, 6808, 8140, 8510, 9361, 10120, 10484, 13105, 16280, 17020, 18722, 20968, 26210, 28831, 34040, 37444, 46805, 52420, 57662, 60283, 74888, 93610, 96977, 104840, 115324, 120566, 144155, 187220, 193954, 230648, 241132, 288310, 301415, 374440, 387908, 482264, 484885, 576620, 602830, 663113, 775816, 969770, 1066747, 1153240, 1205660, 1326226, 1939540, 2133494, 2230471, 2411320, 2652452, 3315565, 3879080, 4266988, 4460942, 5304904, 5333735, 6631130, 8533976, 8921884, 10667470, 11152355, 13262260, 17843768, 21334940, 22304710, 24535181, 26524520, 42669880, 44609420, 49070362, 89218840, 98140724, 122675905, 196281448, 245351810, 490703620, 981407240]

約数ペア:

[(1, 981407240), (2, 490703620), (4, 245351810), (5, 196281448), (8, 122675905), (10, 98140724), (11, 89218840), (20, 49070362), (22, 44609420), (23, 42669880), (37, 26524520), (40, 24535181), (44, 22304710), (46, 21334940), (55, 17843768), (74, 13262260), (88, 11152355), (92, 10667470), (110, 8921884), (115, 8533976), (148, 6631130), (184, 5333735), (185, 5304904), (220, 4460942), (230, 4266988), (253, 3879080), (296, 3315565), (370, 2652452), (407, 2411320), (440, 2230471), (460, 2133494), (506, 1939540), (740, 1326226), (814, 1205660), (851, 1153240), (920, 1066747), (1012, 969770), (1265, 775816), (1480, 663113), (1628, 602830), (1702, 576620), (2024, 484885), (2035, 482264), (2530, 387908), (2621, 374440), (3256, 301415), (3404, 288310), (4070, 241132), (4255, 230648), (5060, 193954), (5242, 187220), (6808, 144155), (8140, 120566), (8510, 115324), (9361, 104840), (10120, 96977), (10484, 93610), (13105, 74888), (16280, 60283), (17020, 57662), (18722, 52420), (20968, 46805), (26210, 37444), (28831, 34040)]