201939890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:339

約数の個数: 64

約数和(自身を含む): 389975040

約数和(自身を除く): 188035150

約数列:

[1, 2, 5, 10, 31, 59, 61, 62, 118, 122, 155, 181, 295, 305, 310, 362, 590, 610, 905, 1810, 1829, 1891, 3599, 3658, 3782, 5611, 7198, 9145, 9455, 10679, 11041, 11222, 17995, 18290, 18910, 21358, 22082, 28055, 35990, 53395, 55205, 56110, 106790, 110410, 111569, 223138, 331049, 342271, 557845, 651419, 662098, 684542, 1115690, 1302838, 1655245, 1711355, 3257095, 3310490, 3422710, 6514190, 20193989, 40387978, 100969945, 201939890]

約数ペア:

[(1, 201939890), (2, 100969945), (5, 40387978), (10, 20193989), (31, 6514190), (59, 3422710), (61, 3310490), (62, 3257095), (118, 1711355), (122, 1655245), (155, 1302838), (181, 1115690), (295, 684542), (305, 662098), (310, 651419), (362, 557845), (590, 342271), (610, 331049), (905, 223138), (1810, 111569), (1829, 110410), (1891, 106790), (3599, 56110), (3658, 55205), (3782, 53395), (5611, 35990), (7198, 28055), (9145, 22082), (9455, 21358), (10679, 18910), (11041, 18290), (11222, 17995)]