20457396

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{797}}^1$

素因数の和:861

約数の個数: 72

約数和(自身を含む): 55770624

約数和(自身を除く): 35313228

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 31, 36, 46, 62, 69, 92, 93, 124, 138, 186, 207, 276, 279, 372, 414, 558, 713, 797, 828, 1116, 1426, 1594, 2139, 2391, 2852, 3188, 4278, 4782, 6417, 7173, 8556, 9564, 12834, 14346, 18331, 24707, 25668, 28692, 36662, 49414, 54993, 73324, 74121, 98828, 109986, 148242, 164979, 219972, 222363, 296484, 329958, 444726, 568261, 659916, 889452, 1136522, 1704783, 2273044, 3409566, 5114349, 6819132, 10228698, 20457396]

約数ペア:

[(1, 20457396), (2, 10228698), (3, 6819132), (4, 5114349), (6, 3409566), (9, 2273044), (12, 1704783), (18, 1136522), (23, 889452), (31, 659916), (36, 568261), (46, 444726), (62, 329958), (69, 296484), (92, 222363), (93, 219972), (124, 164979), (138, 148242), (186, 109986), (207, 98828), (276, 74121), (279, 73324), (372, 54993), (414, 49414), (558, 36662), (713, 28692), (797, 25668), (828, 24707), (1116, 18331), (1426, 14346), (1594, 12834), (2139, 9564), (2391, 8556), (2852, 7173), (3188, 6417), (4278, 4782)]