30718520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3539}}^1$

素因数の和:3588

約数の個数: 64

約数和(自身を含む): 81561600

約数和(自身を除く): 50843080

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, 3539, 4340, 7078, 8680, 14156, 17695, 24773, 28312, 35390, 49546, 70780, 99092, 109709, 123865, 141560, 198184, 219418, 247730, 438836, 495460, 548545, 767963, 877672, 990920, 1097090, 1535926, 2194180, 3071852, 3839815, 4388360, 6143704, 7679630, 15359260, 30718520]

約数ペア:

[(1, 30718520), (2, 15359260), (4, 7679630), (5, 6143704), (7, 4388360), (8, 3839815), (10, 3071852), (14, 2194180), (20, 1535926), (28, 1097090), (31, 990920), (35, 877672), (40, 767963), (56, 548545), (62, 495460), (70, 438836), (124, 247730), (140, 219418), (155, 198184), (217, 141560), (248, 123865), (280, 109709), (310, 99092), (434, 70780), (620, 49546), (868, 35390), (1085, 28312), (1240, 24773), (1736, 17695), (2170, 14156), (3539, 8680), (4340, 7078)]