18821812380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{6401977}}^1$

素因数の和:6402003

約数の個数: 72

約数和(自身を含む): 61305341328

約数和(自身を除く): 42483528948

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 6401977, 12803954, 19205931, 25607908, 32009885, 38411862, 44813839, 64019770, 76823724, 89627678, 96029655, 128039540, 134441517, 179255356, 192059310, 224069195, 268883034, 313696873, 384118620, 448138390, 537766068, 627393746, 672207585, 896276780, 941090619, 1254787492, 1344415170, 1568484365, 1882181238, 2688830340, 3136968730, 3764362476, 4705453095, 6273937460, 9410906190, 18821812380]

約数ペア:

[(1, 18821812380), (2, 9410906190), (3, 6273937460), (4, 4705453095), (5, 3764362476), (6, 3136968730), (7, 2688830340), (10, 1882181238), (12, 1568484365), (14, 1344415170), (15, 1254787492), (20, 941090619), (21, 896276780), (28, 672207585), (30, 627393746), (35, 537766068), (42, 448138390), (49, 384118620), (60, 313696873), (70, 268883034), (84, 224069195), (98, 192059310), (105, 179255356), (140, 134441517), (147, 128039540), (196, 96029655), (210, 89627678), (245, 76823724), (294, 64019770), (420, 44813839), (490, 38411862), (588, 32009885), (735, 25607908), (980, 19205931), (1470, 12803954), (2940, 6401977)]