19531240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{829}}^1$

素因数の和:890

約数の個数: 64

約数和(自身を含む): 47808000

約数和(自身を除く): 28276760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 190, 248, 310, 380, 589, 620, 760, 829, 1178, 1240, 1658, 2356, 2945, 3316, 4145, 4712, 5890, 6632, 8290, 11780, 15751, 16580, 23560, 25699, 31502, 33160, 51398, 63004, 78755, 102796, 126008, 128495, 157510, 205592, 256990, 315020, 488281, 513980, 630040, 976562, 1027960, 1953124, 2441405, 3906248, 4882810, 9765620, 19531240]

約数ペア:

[(1, 19531240), (2, 9765620), (4, 4882810), (5, 3906248), (8, 2441405), (10, 1953124), (19, 1027960), (20, 976562), (31, 630040), (38, 513980), (40, 488281), (62, 315020), (76, 256990), (95, 205592), (124, 157510), (152, 128495), (155, 126008), (190, 102796), (248, 78755), (310, 63004), (380, 51398), (589, 33160), (620, 31502), (760, 25699), (829, 23560), (1178, 16580), (1240, 15751), (1658, 11780), (2356, 8290), (2945, 6632), (3316, 5890), (4145, 4712)]