19765280

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:210

約数の個数: 96

約数和(自身を含む): 50295168

約数和(自身を除く): 30529888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 41, 46, 80, 82, 92, 115, 131, 160, 164, 184, 205, 230, 262, 328, 368, 410, 460, 524, 655, 656, 736, 820, 920, 943, 1048, 1310, 1312, 1640, 1840, 1886, 2096, 2620, 3013, 3280, 3680, 3772, 4192, 4715, 5240, 5371, 6026, 6560, 7544, 9430, 10480, 10742, 12052, 15065, 15088, 18860, 20960, 21484, 24104, 26855, 30130, 30176, 37720, 42968, 48208, 53710, 60260, 75440, 85936, 96416, 107420, 120520, 123533, 150880, 171872, 214840, 241040, 247066, 429680, 482080, 494132, 617665, 859360, 988264, 1235330, 1976528, 2470660, 3953056, 4941320, 9882640, 19765280]

約数ペア:

[(1, 19765280), (2, 9882640), (4, 4941320), (5, 3953056), (8, 2470660), (10, 1976528), (16, 1235330), (20, 988264), (23, 859360), (32, 617665), (40, 494132), (41, 482080), (46, 429680), (80, 247066), (82, 241040), (92, 214840), (115, 171872), (131, 150880), (160, 123533), (164, 120520), (184, 107420), (205, 96416), (230, 85936), (262, 75440), (328, 60260), (368, 53710), (410, 48208), (460, 42968), (524, 37720), (655, 30176), (656, 30130), (736, 26855), (820, 24104), (920, 21484), (943, 20960), (1048, 18860), (1310, 15088), (1312, 15065), (1640, 12052), (1840, 10742), (1886, 10480), (2096, 9430), (2620, 7544), (3013, 6560), (3280, 6026), (3680, 5371), (3772, 5240), (4192, 4715)]