28059720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17987}}^1$

素因数の和:18014

約数の個数: 64

約数和(自身を含む): 90659520

約数和(自身を除く): 62599800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 17987, 35974, 53961, 71948, 89935, 107922, 143896, 179870, 215844, 233831, 269805, 359740, 431688, 467662, 539610, 701493, 719480, 935324, 1079220, 1169155, 1402986, 1870648, 2158440, 2338310, 2805972, 3507465, 4676620, 5611944, 7014930, 9353240, 14029860, 28059720]

約数ペア:

[(1, 28059720), (2, 14029860), (3, 9353240), (4, 7014930), (5, 5611944), (6, 4676620), (8, 3507465), (10, 2805972), (12, 2338310), (13, 2158440), (15, 1870648), (20, 1402986), (24, 1169155), (26, 1079220), (30, 935324), (39, 719480), (40, 701493), (52, 539610), (60, 467662), (65, 431688), (78, 359740), (104, 269805), (120, 233831), (130, 215844), (156, 179870), (195, 143896), (260, 107922), (312, 89935), (390, 71948), (520, 53961), (780, 35974), (1560, 17987)]