28955240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1229}}^1$

素因数の和:1290

約数の個数: 64

約数和(自身を含む): 70848000

約数和(自身を除く): 41892760

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, 1178, 1229, 1240, 2356, 2458, 2945, 4712, 4916, 5890, 6145, 9832, 11780, 12290, 23351, 23560, 24580, 38099, 46702, 49160, 76198, 93404, 116755, 152396, 186808, 190495, 233510, 304792, 380990, 467020, 723881, 761980, 934040, 1447762, 1523960, 2895524, 3619405, 5791048, 7238810, 14477620, 28955240]

約数ペア:

[(1, 28955240), (2, 14477620), (4, 7238810), (5, 5791048), (8, 3619405), (10, 2895524), (19, 1523960), (20, 1447762), (31, 934040), (38, 761980), (40, 723881), (62, 467020), (76, 380990), (95, 304792), (124, 233510), (152, 190495), (155, 186808), (190, 152396), (248, 116755), (310, 93404), (380, 76198), (589, 49160), (620, 46702), (760, 38099), (1178, 24580), (1229, 23560), (1240, 23351), (2356, 12290), (2458, 11780), (2945, 9832), (4712, 6145), (4916, 5890)]