19908004080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2675807}}^1$

素因数の和:2675854

約数の個数: 80

約数和(自身を含む): 63705636864

約数和(自身を除く): 43797632784

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 2675807, 5351614, 8027421, 10703228, 13379035, 16054842, 21406456, 26758070, 32109684, 40137105, 42812912, 53516140, 64219368, 80274210, 82950017, 107032280, 128438736, 160548420, 165900034, 214064560, 248850051, 321096840, 331800068, 414750085, 497700102, 642193680, 663600136, 829500170, 995400204, 1244250255, 1327200272, 1659000340, 1990800408, 2488500510, 3318000680, 3981600816, 4977001020, 6636001360, 9954002040, 19908004080]

約数ペア:

[(1, 19908004080), (2, 9954002040), (3, 6636001360), (4, 4977001020), (5, 3981600816), (6, 3318000680), (8, 2488500510), (10, 1990800408), (12, 1659000340), (15, 1327200272), (16, 1244250255), (20, 995400204), (24, 829500170), (30, 663600136), (31, 642193680), (40, 497700102), (48, 414750085), (60, 331800068), (62, 321096840), (80, 248850051), (93, 214064560), (120, 165900034), (124, 160548420), (155, 128438736), (186, 107032280), (240, 82950017), (248, 80274210), (310, 64219368), (372, 53516140), (465, 42812912), (496, 40137105), (620, 32109684), (744, 26758070), (930, 21406456), (1240, 16054842), (1488, 13379035), (1860, 10703228), (2480, 8027421), (3720, 5351614), (7440, 2675807)]