19694920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2269}}^1$

素因数の和:2318

約数の個数: 64

約数和(自身を含む): 52300800

約数和(自身を除く): 32605880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 2269, 4340, 4538, 8680, 9076, 11345, 15883, 18152, 22690, 31766, 45380, 63532, 70339, 79415, 90760, 127064, 140678, 158830, 281356, 317660, 351695, 492373, 562712, 635320, 703390, 984746, 1406780, 1969492, 2461865, 2813560, 3938984, 4923730, 9847460, 19694920]

約数ペア:

[(1, 19694920), (2, 9847460), (4, 4923730), (5, 3938984), (7, 2813560), (8, 2461865), (10, 1969492), (14, 1406780), (20, 984746), (28, 703390), (31, 635320), (35, 562712), (40, 492373), (56, 351695), (62, 317660), (70, 281356), (124, 158830), (140, 140678), (155, 127064), (217, 90760), (248, 79415), (280, 70339), (310, 63532), (434, 45380), (620, 31766), (868, 22690), (1085, 18152), (1240, 15883), (1736, 11345), (2170, 9076), (2269, 8680), (4340, 4538)]