19916880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2677}}^1$

素因数の和:2724

約数の個数: 80

約数和(自身を含む): 63757824

約数和(自身を除く): 43840944

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, 2677, 3720, 5354, 7440, 8031, 10708, 13385, 16062, 21416, 26770, 32124, 40155, 42832, 53540, 64248, 80310, 82987, 107080, 128496, 160620, 165974, 214160, 248961, 321240, 331948, 414935, 497922, 642480, 663896, 829870, 995844, 1244805, 1327792, 1659740, 1991688, 2489610, 3319480, 3983376, 4979220, 6638960, 9958440, 19916880]

約数ペア:

[(1, 19916880), (2, 9958440), (3, 6638960), (4, 4979220), (5, 3983376), (6, 3319480), (8, 2489610), (10, 1991688), (12, 1659740), (15, 1327792), (16, 1244805), (20, 995844), (24, 829870), (30, 663896), (31, 642480), (40, 497922), (48, 414935), (60, 331948), (62, 321240), (80, 248961), (93, 214160), (120, 165974), (124, 160620), (155, 128496), (186, 107080), (240, 82987), (248, 80310), (310, 64248), (372, 53540), (465, 42832), (496, 40155), (620, 32124), (744, 26770), (930, 21416), (1240, 16062), (1488, 13385), (1860, 10708), (2480, 8031), (2677, 7440), (3720, 5354)]