215401900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{787}}^1$

素因数の和:848

約数の個数: 144

約数和(自身を含む): 590962176

約数和(自身を除く): 375560276

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 23, 25, 28, 34, 35, 46, 50, 68, 70, 85, 92, 100, 115, 119, 140, 161, 170, 175, 230, 238, 322, 340, 350, 391, 425, 460, 476, 575, 595, 644, 700, 782, 787, 805, 850, 1150, 1190, 1564, 1574, 1610, 1700, 1955, 2300, 2380, 2737, 2975, 3148, 3220, 3910, 3935, 4025, 5474, 5509, 5950, 7820, 7870, 8050, 9775, 10948, 11018, 11900, 13379, 13685, 15740, 16100, 18101, 19550, 19675, 22036, 26758, 27370, 27545, 36202, 39100, 39350, 53516, 54740, 55090, 66895, 68425, 72404, 78700, 90505, 93653, 110180, 126707, 133790, 136850, 137725, 181010, 187306, 253414, 267580, 273700, 275450, 307717, 334475, 362020, 374612, 452525, 468265, 506828, 550900, 615434, 633535, 668950, 905050, 936530, 1230868, 1267070, 1337900, 1538585, 1810100, 1873060, 2154019, 2341325, 2534140, 3077170, 3167675, 4308038, 4682650, 6154340, 6335350, 7692925, 8616076, 9365300, 10770095, 12670700, 15385850, 21540190, 30771700, 43080380, 53850475, 107700950, 215401900]

約数ペア:

[(1, 215401900), (2, 107700950), (4, 53850475), (5, 43080380), (7, 30771700), (10, 21540190), (14, 15385850), (17, 12670700), (20, 10770095), (23, 9365300), (25, 8616076), (28, 7692925), (34, 6335350), (35, 6154340), (46, 4682650), (50, 4308038), (68, 3167675), (70, 3077170), (85, 2534140), (92, 2341325), (100, 2154019), (115, 1873060), (119, 1810100), (140, 1538585), (161, 1337900), (170, 1267070), (175, 1230868), (230, 936530), (238, 905050), (322, 668950), (340, 633535), (350, 615434), (391, 550900), (425, 506828), (460, 468265), (476, 452525), (575, 374612), (595, 362020), (644, 334475), (700, 307717), (782, 275450), (787, 273700), (805, 267580), (850, 253414), (1150, 187306), (1190, 181010), (1564, 137725), (1574, 136850), (1610, 133790), (1700, 126707), (1955, 110180), (2300, 93653), (2380, 90505), (2737, 78700), (2975, 72404), (3148, 68425), (3220, 66895), (3910, 55090), (3935, 54740), (4025, 53516), (5474, 39350), (5509, 39100), (5950, 36202), (7820, 27545), (7870, 27370), (8050, 26758), (9775, 22036), (10948, 19675), (11018, 19550), (11900, 18101), (13379, 16100), (13685, 15740)]