28220796

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:323

約数の個数: 72

約数和(自身を含む): 73932768

約数和(自身を除く): 45711972

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 71, 122, 142, 181, 183, 213, 244, 284, 362, 366, 426, 543, 549, 639, 724, 732, 852, 1086, 1098, 1278, 1629, 2172, 2196, 2556, 3258, 4331, 6516, 8662, 11041, 12851, 12993, 17324, 22082, 25702, 25986, 33123, 38553, 38979, 44164, 51404, 51972, 66246, 77106, 77958, 99369, 115659, 132492, 154212, 155916, 198738, 231318, 397476, 462636, 783911, 1567822, 2351733, 3135644, 4703466, 7055199, 9406932, 14110398, 28220796]

約数ペア:

[(1, 28220796), (2, 14110398), (3, 9406932), (4, 7055199), (6, 4703466), (9, 3135644), (12, 2351733), (18, 1567822), (36, 783911), (61, 462636), (71, 397476), (122, 231318), (142, 198738), (181, 155916), (183, 154212), (213, 132492), (244, 115659), (284, 99369), (362, 77958), (366, 77106), (426, 66246), (543, 51972), (549, 51404), (639, 44164), (724, 38979), (732, 38553), (852, 33123), (1086, 25986), (1098, 25702), (1278, 22082), (1629, 17324), (2172, 12993), (2196, 12851), (2556, 11041), (3258, 8662), (4331, 6516)]