2019398900

素因数分解:

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

素因数の和:346

約数の個数: 144

約数和(自身を含む): 4701365760

約数和(自身を除く): 2681966860

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 59, 61, 62, 100, 118, 122, 124, 155, 181, 236, 244, 295, 305, 310, 362, 590, 610, 620, 724, 775, 905, 1180, 1220, 1475, 1525, 1550, 1810, 1829, 1891, 2950, 3050, 3100, 3599, 3620, 3658, 3782, 4525, 5611, 5900, 6100, 7198, 7316, 7564, 9050, 9145, 9455, 10679, 11041, 11222, 14396, 17995, 18100, 18290, 18910, 21358, 22082, 22444, 28055, 35990, 36580, 37820, 42716, 44164, 45725, 47275, 53395, 55205, 56110, 71980, 89975, 91450, 94550, 106790, 110410, 111569, 112220, 140275, 179950, 182900, 189100, 213580, 220820, 223138, 266975, 276025, 280550, 331049, 342271, 359900, 446276, 533950, 552050, 557845, 561100, 651419, 662098, 684542, 1067900, 1104100, 1115690, 1302838, 1324196, 1369084, 1655245, 1711355, 2231380, 2605676, 2789225, 3257095, 3310490, 3422710, 5578450, 6514190, 6620980, 6845420, 8276225, 8556775, 11156900, 13028380, 16285475, 16552450, 17113550, 20193989, 32570950, 33104900, 34227100, 40387978, 65141900, 80775956, 100969945, 201939890, 403879780, 504849725, 1009699450, 2019398900]

約数ペア:

[(1, 2019398900), (2, 1009699450), (4, 504849725), (5, 403879780), (10, 201939890), (20, 100969945), (25, 80775956), (31, 65141900), (50, 40387978), (59, 34227100), (61, 33104900), (62, 32570950), (100, 20193989), (118, 17113550), (122, 16552450), (124, 16285475), (155, 13028380), (181, 11156900), (236, 8556775), (244, 8276225), (295, 6845420), (305, 6620980), (310, 6514190), (362, 5578450), (590, 3422710), (610, 3310490), (620, 3257095), (724, 2789225), (775, 2605676), (905, 2231380), (1180, 1711355), (1220, 1655245), (1475, 1369084), (1525, 1324196), (1550, 1302838), (1810, 1115690), (1829, 1104100), (1891, 1067900), (2950, 684542), (3050, 662098), (3100, 651419), (3599, 561100), (3620, 557845), (3658, 552050), (3782, 533950), (4525, 446276), (5611, 359900), (5900, 342271), (6100, 331049), (7198, 280550), (7316, 276025), (7564, 266975), (9050, 223138), (9145, 220820), (9455, 213580), (10679, 189100), (11041, 182900), (11222, 179950), (14396, 140275), (17995, 112220), (18100, 111569), (18290, 110410), (18910, 106790), (21358, 94550), (22082, 91450), (22444, 89975), (28055, 71980), (35990, 56110), (36580, 55205), (37820, 53395), (42716, 47275), (44164, 45725)]