30101720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^2$

素因数の和:145

約数の個数: 96

約数和(自身を含む): 77688720

約数和(自身を除く): 47587000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 43, 44, 55, 74, 86, 88, 110, 148, 172, 185, 215, 220, 296, 344, 370, 407, 430, 440, 473, 740, 814, 860, 946, 1480, 1591, 1628, 1720, 1849, 1892, 2035, 2365, 3182, 3256, 3698, 3784, 4070, 4730, 6364, 7396, 7955, 8140, 9245, 9460, 12728, 14792, 15910, 16280, 17501, 18490, 18920, 20339, 31820, 35002, 36980, 40678, 63640, 68413, 70004, 73960, 81356, 87505, 101695, 136826, 140008, 162712, 175010, 203390, 273652, 342065, 350020, 406780, 547304, 684130, 700040, 752543, 813560, 1368260, 1505086, 2736520, 3010172, 3762715, 6020344, 7525430, 15050860, 30101720]

約数ペア:

[(1, 30101720), (2, 15050860), (4, 7525430), (5, 6020344), (8, 3762715), (10, 3010172), (11, 2736520), (20, 1505086), (22, 1368260), (37, 813560), (40, 752543), (43, 700040), (44, 684130), (55, 547304), (74, 406780), (86, 350020), (88, 342065), (110, 273652), (148, 203390), (172, 175010), (185, 162712), (215, 140008), (220, 136826), (296, 101695), (344, 87505), (370, 81356), (407, 73960), (430, 70004), (440, 68413), (473, 63640), (740, 40678), (814, 36980), (860, 35002), (946, 31820), (1480, 20339), (1591, 18920), (1628, 18490), (1720, 17501), (1849, 16280), (1892, 15910), (2035, 14792), (2365, 12728), (3182, 9460), (3256, 9245), (3698, 8140), (3784, 7955), (4070, 7396), (4730, 6364)]