199471880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{15439}}^1$

素因数の和:15486

約数の個数: 64

約数和(自身を含む): 500256000

約数和(自身を除く): 300784120

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 646, 680, 760, 1292, 1615, 2584, 3230, 6460, 12920, 15439, 30878, 61756, 77195, 123512, 154390, 262463, 293341, 308780, 524926, 586682, 617560, 1049852, 1173364, 1312315, 1466705, 2099704, 2346728, 2624630, 2933410, 4986797, 5249260, 5866820, 9973594, 10498520, 11733640, 19947188, 24933985, 39894376, 49867970, 99735940, 199471880]

約数ペア:

[(1, 199471880), (2, 99735940), (4, 49867970), (5, 39894376), (8, 24933985), (10, 19947188), (17, 11733640), (19, 10498520), (20, 9973594), (34, 5866820), (38, 5249260), (40, 4986797), (68, 2933410), (76, 2624630), (85, 2346728), (95, 2099704), (136, 1466705), (152, 1312315), (170, 1173364), (190, 1049852), (323, 617560), (340, 586682), (380, 524926), (646, 308780), (680, 293341), (760, 262463), (1292, 154390), (1615, 123512), (2584, 77195), (3230, 61756), (6460, 30878), (12920, 15439)]