1297420700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{2063}}^1$

素因数の和:2427

約数の個数: 72

約数和(自身を含む): 2973976320

約数和(自身を除く): 1676555620

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 331, 380, 475, 662, 950, 1324, 1655, 1900, 2063, 3310, 4126, 6289, 6620, 8252, 8275, 10315, 12578, 16550, 20630, 25156, 31445, 33100, 39197, 41260, 51575, 62890, 78394, 103150, 125780, 156788, 157225, 195985, 206300, 314450, 391970, 628900, 682853, 783940, 979925, 1365706, 1959850, 2731412, 3414265, 3919700, 6828530, 12974207, 13657060, 17071325, 25948414, 34142650, 51896828, 64871035, 68285300, 129742070, 259484140, 324355175, 648710350, 1297420700]

約数ペア:

[(1, 1297420700), (2, 648710350), (4, 324355175), (5, 259484140), (10, 129742070), (19, 68285300), (20, 64871035), (25, 51896828), (38, 34142650), (50, 25948414), (76, 17071325), (95, 13657060), (100, 12974207), (190, 6828530), (331, 3919700), (380, 3414265), (475, 2731412), (662, 1959850), (950, 1365706), (1324, 979925), (1655, 783940), (1900, 682853), (2063, 628900), (3310, 391970), (4126, 314450), (6289, 206300), (6620, 195985), (8252, 157225), (8275, 156788), (10315, 125780), (12578, 103150), (16550, 78394), (20630, 62890), (25156, 51575), (31445, 41260), (33100, 39197)]