8991427220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1\times {\mathrm{23539}}^1$

素因数の和:23888

約数の個数: 48

約数和(自身を含む): 19219939200

約数和(自身を除く): 10228511980

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 269, 284, 355, 538, 710, 1076, 1345, 1420, 2690, 5380, 19099, 23539, 38198, 47078, 76396, 94156, 95495, 117695, 190990, 235390, 381980, 470780, 1671269, 3342538, 6331991, 6685076, 8356345, 12663982, 16712690, 25327964, 31659955, 33425380, 63319910, 126639820, 449571361, 899142722, 1798285444, 2247856805, 4495713610, 8991427220]

約数ペア:

[(1, 8991427220), (2, 4495713610), (4, 2247856805), (5, 1798285444), (10, 899142722), (20, 449571361), (71, 126639820), (142, 63319910), (269, 33425380), (284, 31659955), (355, 25327964), (538, 16712690), (710, 12663982), (1076, 8356345), (1345, 6685076), (1420, 6331991), (2690, 3342538), (5380, 1671269), (19099, 470780), (23539, 381980), (38198, 235390), (47078, 190990), (76396, 117695), (94156, 95495)]