19404450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:169

約数の個数: 144

約数和(自身を含む): 58496256

約数和(自身を除く): 39091806

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 25, 26, 30, 31, 39, 45, 50, 62, 65, 75, 78, 90, 93, 107, 117, 130, 150, 155, 186, 195, 214, 225, 234, 279, 310, 321, 325, 390, 403, 450, 465, 535, 558, 585, 642, 650, 775, 806, 930, 963, 975, 1070, 1170, 1209, 1391, 1395, 1550, 1605, 1926, 1950, 2015, 2325, 2418, 2675, 2782, 2790, 2925, 3210, 3317, 3627, 4030, 4173, 4650, 4815, 5350, 5850, 6045, 6634, 6955, 6975, 7254, 8025, 8346, 9630, 9951, 10075, 12090, 12519, 13910, 13950, 16050, 16585, 18135, 19902, 20150, 20865, 24075, 25038, 29853, 30225, 33170, 34775, 36270, 41730, 43121, 48150, 49755, 59706, 60450, 62595, 69550, 82925, 86242, 90675, 99510, 104325, 125190, 129363, 149265, 165850, 181350, 208650, 215605, 248775, 258726, 298530, 312975, 388089, 431210, 497550, 625950, 646815, 746325, 776178, 1078025, 1293630, 1492650, 1940445, 2156050, 3234075, 3880890, 6468150, 9702225, 19404450]

約数ペア:

[(1, 19404450), (2, 9702225), (3, 6468150), (5, 3880890), (6, 3234075), (9, 2156050), (10, 1940445), (13, 1492650), (15, 1293630), (18, 1078025), (25, 776178), (26, 746325), (30, 646815), (31, 625950), (39, 497550), (45, 431210), (50, 388089), (62, 312975), (65, 298530), (75, 258726), (78, 248775), (90, 215605), (93, 208650), (107, 181350), (117, 165850), (130, 149265), (150, 129363), (155, 125190), (186, 104325), (195, 99510), (214, 90675), (225, 86242), (234, 82925), (279, 69550), (310, 62595), (321, 60450), (325, 59706), (390, 49755), (403, 48150), (450, 43121), (465, 41730), (535, 36270), (558, 34775), (585, 33170), (642, 30225), (650, 29853), (775, 25038), (806, 24075), (930, 20865), (963, 20150), (975, 19902), (1070, 18135), (1170, 16585), (1209, 16050), (1391, 13950), (1395, 13910), (1550, 12519), (1605, 12090), (1926, 10075), (1950, 9951), (2015, 9630), (2325, 8346), (2418, 8025), (2675, 7254), (2782, 6975), (2790, 6955), (2925, 6634), (3210, 6045), (3317, 5850), (3627, 5350), (4030, 4815), (4173, 4650)]