1981856340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{109013}}^1$

素因数の和:109129

約数の個数: 72

約数和(自身を含む): 6071207688

約数和(自身を除く): 4089351348

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 505, 606, 909, 1010, 1212, 1515, 1818, 2020, 3030, 3636, 4545, 6060, 9090, 18180, 109013, 218026, 327039, 436052, 545065, 654078, 981117, 1090130, 1308156, 1635195, 1962234, 2180260, 3270390, 3924468, 4905585, 6540780, 9811170, 11010313, 19622340, 22020626, 33030939, 44041252, 55051565, 66061878, 99092817, 110103130, 132123756, 165154695, 198185634, 220206260, 330309390, 396371268, 495464085, 660618780, 990928170, 1981856340]

約数ペア:

[(1, 1981856340), (2, 990928170), (3, 660618780), (4, 495464085), (5, 396371268), (6, 330309390), (9, 220206260), (10, 198185634), (12, 165154695), (15, 132123756), (18, 110103130), (20, 99092817), (30, 66061878), (36, 55051565), (45, 44041252), (60, 33030939), (90, 22020626), (101, 19622340), (180, 11010313), (202, 9811170), (303, 6540780), (404, 4905585), (505, 3924468), (606, 3270390), (909, 2180260), (1010, 1962234), (1212, 1635195), (1515, 1308156), (1818, 1090130), (2020, 981117), (3030, 654078), (3636, 545065), (4545, 436052), (6060, 327039), (9090, 218026), (18180, 109013)]