20105248920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{499}}^1\times {\mathrm{4729}}^1$

素因数の和:5313

約数の個数: 128

約数和(自身を含む): 61300800000

約数和(自身を除く): 41195551080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 499, 568, 710, 852, 998, 1065, 1420, 1497, 1704, 1996, 2130, 2495, 2840, 2994, 3992, 4260, 4729, 4990, 5988, 7485, 8520, 9458, 9980, 11976, 14187, 14970, 18916, 19960, 23645, 28374, 29940, 35429, 37832, 47290, 56748, 59880, 70858, 70935, 94580, 106287, 113496, 141716, 141870, 177145, 189160, 212574, 283432, 283740, 335759, 354290, 425148, 531435, 567480, 671518, 708580, 850296, 1007277, 1062870, 1343036, 1417160, 1678795, 2014554, 2125740, 2359771, 2686072, 3357590, 4029108, 4251480, 4719542, 5036385, 6715180, 7079313, 8058216, 9439084, 10072770, 11798855, 13430360, 14158626, 18878168, 20145540, 23597710, 28317252, 35396565, 40291080, 47195420, 56634504, 70793130, 94390840, 141586260, 167543741, 283172520, 335087482, 502631223, 670174964, 837718705, 1005262446, 1340349928, 1675437410, 2010524892, 2513156115, 3350874820, 4021049784, 5026312230, 6701749640, 10052624460, 20105248920]

約数ペア:

[(1, 20105248920), (2, 10052624460), (3, 6701749640), (4, 5026312230), (5, 4021049784), (6, 3350874820), (8, 2513156115), (10, 2010524892), (12, 1675437410), (15, 1340349928), (20, 1005262446), (24, 837718705), (30, 670174964), (40, 502631223), (60, 335087482), (71, 283172520), (120, 167543741), (142, 141586260), (213, 94390840), (284, 70793130), (355, 56634504), (426, 47195420), (499, 40291080), (568, 35396565), (710, 28317252), (852, 23597710), (998, 20145540), (1065, 18878168), (1420, 14158626), (1497, 13430360), (1704, 11798855), (1996, 10072770), (2130, 9439084), (2495, 8058216), (2840, 7079313), (2994, 6715180), (3992, 5036385), (4260, 4719542), (4729, 4251480), (4990, 4029108), (5988, 3357590), (7485, 2686072), (8520, 2359771), (9458, 2125740), (9980, 2014554), (11976, 1678795), (14187, 1417160), (14970, 1343036), (18916, 1062870), (19960, 1007277), (23645, 850296), (28374, 708580), (29940, 671518), (35429, 567480), (37832, 531435), (47290, 425148), (56748, 354290), (59880, 335759), (70858, 283740), (70935, 283432), (94580, 212574), (106287, 189160), (113496, 177145), (141716, 141870)]