20023835840

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{10243}}^1$

素因数の和:10450

約数の個数: 112

約数和(自身を含む): 49177346400

約数和(自身を除く): 29153510560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 149, 160, 164, 205, 298, 320, 328, 410, 596, 656, 745, 820, 1192, 1312, 1490, 1640, 2384, 2624, 2980, 3280, 4768, 5960, 6109, 6560, 9536, 10243, 11920, 12218, 13120, 20486, 23840, 24436, 30545, 40972, 47680, 48872, 51215, 61090, 81944, 97744, 102430, 122180, 163888, 195488, 204860, 244360, 327776, 390976, 409720, 419963, 488720, 655552, 819440, 839926, 977440, 1526207, 1638880, 1679852, 1954880, 2099815, 3052414, 3277760, 3359704, 4199630, 6104828, 6719408, 7631035, 8399260, 12209656, 13438816, 15262070, 16798520, 24419312, 26877632, 30524140, 33597040, 48838624, 61048280, 62574487, 67194080, 97677248, 122096560, 125148974, 134388160, 244193120, 250297948, 312872435, 488386240, 500595896, 625744870, 1001191792, 1251489740, 2002383584, 2502979480, 4004767168, 5005958960, 10011917920, 20023835840]

約数ペア:

[(1, 20023835840), (2, 10011917920), (4, 5005958960), (5, 4004767168), (8, 2502979480), (10, 2002383584), (16, 1251489740), (20, 1001191792), (32, 625744870), (40, 500595896), (41, 488386240), (64, 312872435), (80, 250297948), (82, 244193120), (149, 134388160), (160, 125148974), (164, 122096560), (205, 97677248), (298, 67194080), (320, 62574487), (328, 61048280), (410, 48838624), (596, 33597040), (656, 30524140), (745, 26877632), (820, 24419312), (1192, 16798520), (1312, 15262070), (1490, 13438816), (1640, 12209656), (2384, 8399260), (2624, 7631035), (2980, 6719408), (3280, 6104828), (4768, 4199630), (5960, 3359704), (6109, 3277760), (6560, 3052414), (9536, 2099815), (10243, 1954880), (11920, 1679852), (12218, 1638880), (13120, 1526207), (20486, 977440), (23840, 839926), (24436, 819440), (30545, 655552), (40972, 488720), (47680, 419963), (48872, 409720), (51215, 390976), (61090, 327776), (81944, 244360), (97744, 204860), (102430, 195488), (122180, 163888)]