1001276440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{42499}}^1$

素因数の和:42560

約数の個数: 64

約数和(自身を含む): 2448000000

約数和(自身を除く): 1446723560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 190, 248, 310, 380, 589, 620, 760, 1178, 1240, 2356, 2945, 4712, 5890, 11780, 23560, 42499, 84998, 169996, 212495, 339992, 424990, 807481, 849980, 1317469, 1614962, 1699960, 2634938, 3229924, 4037405, 5269876, 6459848, 6587345, 8074810, 10539752, 13174690, 16149620, 25031911, 26349380, 32299240, 50063822, 52698760, 100127644, 125159555, 200255288, 250319110, 500638220, 1001276440]

約数ペア:

[(1, 1001276440), (2, 500638220), (4, 250319110), (5, 200255288), (8, 125159555), (10, 100127644), (19, 52698760), (20, 50063822), (31, 32299240), (38, 26349380), (40, 25031911), (62, 16149620), (76, 13174690), (95, 10539752), (124, 8074810), (152, 6587345), (155, 6459848), (190, 5269876), (248, 4037405), (310, 3229924), (380, 2634938), (589, 1699960), (620, 1614962), (760, 1317469), (1178, 849980), (1240, 807481), (2356, 424990), (2945, 339992), (4712, 212495), (5890, 169996), (11780, 84998), (23560, 42499)]