439748660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{12911}}^1$

素因数の和:13064

約数の個数: 48

約数和(自身を含む): 1002177792

約数和(自身を除く): 562429132

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 655, 1310, 1703, 2620, 3406, 6812, 8515, 12911, 17030, 25822, 34060, 51644, 64555, 129110, 167843, 258220, 335686, 671372, 839215, 1678430, 1691341, 3356860, 3382682, 6765364, 8456705, 16913410, 21987433, 33826820, 43974866, 87949732, 109937165, 219874330, 439748660]

約数ペア:

[(1, 439748660), (2, 219874330), (4, 109937165), (5, 87949732), (10, 43974866), (13, 33826820), (20, 21987433), (26, 16913410), (52, 8456705), (65, 6765364), (130, 3382682), (131, 3356860), (260, 1691341), (262, 1678430), (524, 839215), (655, 671372), (1310, 335686), (1703, 258220), (2620, 167843), (3406, 129110), (6812, 64555), (8515, 51644), (12911, 34060), (17030, 25822)]