21203760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{5197}}^1$

素因数の和:5230

約数の個数: 80

約数和(自身を含む): 69611616

約数和(自身を除く): 48407856

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 5197, 10394, 15591, 20788, 25985, 31182, 41576, 51970, 62364, 77955, 83152, 88349, 103940, 124728, 155910, 176698, 207880, 249456, 265047, 311820, 353396, 415760, 441745, 530094, 623640, 706792, 883490, 1060188, 1247280, 1325235, 1413584, 1766980, 2120376, 2650470, 3533960, 4240752, 5300940, 7067920, 10601880, 21203760]

約数ペア:

[(1, 21203760), (2, 10601880), (3, 7067920), (4, 5300940), (5, 4240752), (6, 3533960), (8, 2650470), (10, 2120376), (12, 1766980), (15, 1413584), (16, 1325235), (17, 1247280), (20, 1060188), (24, 883490), (30, 706792), (34, 623640), (40, 530094), (48, 441745), (51, 415760), (60, 353396), (68, 311820), (80, 265047), (85, 249456), (102, 207880), (120, 176698), (136, 155910), (170, 124728), (204, 103940), (240, 88349), (255, 83152), (272, 77955), (340, 62364), (408, 51970), (510, 41576), (680, 31182), (816, 25985), (1020, 20788), (1360, 15591), (2040, 10394), (4080, 5197)]