123890190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{439}}^1$

素因数の和:881

約数の個数: 64

約数和(自身を含む): 311731200

約数和(自身を除く): 187841010

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 409, 439, 690, 818, 878, 1227, 1317, 2045, 2195, 2454, 2634, 4090, 4390, 6135, 6585, 9407, 10097, 12270, 13170, 18814, 20194, 28221, 30291, 47035, 50485, 56442, 60582, 94070, 100970, 141105, 151455, 179551, 282210, 302910, 359102, 538653, 897755, 1077306, 1795510, 2693265, 4129673, 5386530, 8259346, 12389019, 20648365, 24778038, 41296730, 61945095, 123890190]

約数ペア:

[(1, 123890190), (2, 61945095), (3, 41296730), (5, 24778038), (6, 20648365), (10, 12389019), (15, 8259346), (23, 5386530), (30, 4129673), (46, 2693265), (69, 1795510), (115, 1077306), (138, 897755), (230, 538653), (345, 359102), (409, 302910), (439, 282210), (690, 179551), (818, 151455), (878, 141105), (1227, 100970), (1317, 94070), (2045, 60582), (2195, 56442), (2454, 50485), (2634, 47035), (4090, 30291), (4390, 28221), (6135, 20194), (6585, 18814), (9407, 13170), (10097, 12270)]