138748750

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:287

約数の個数: 80

約数和(自身を含む): 302078304

約数和(自身を除く): 163329554

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 101, 125, 157, 175, 202, 250, 314, 350, 505, 625, 707, 785, 875, 1010, 1099, 1250, 1414, 1570, 1750, 2198, 2525, 3535, 3925, 4375, 5050, 5495, 7070, 7850, 8750, 10990, 12625, 15857, 17675, 19625, 25250, 27475, 31714, 35350, 39250, 54950, 63125, 79285, 88375, 98125, 110999, 126250, 137375, 158570, 176750, 196250, 221998, 274750, 396425, 441875, 554995, 686875, 792850, 883750, 1109990, 1373750, 1982125, 2774975, 3964250, 5549950, 9910625, 13874875, 19821250, 27749750, 69374375, 138748750]

約数ペア:

[(1, 138748750), (2, 69374375), (5, 27749750), (7, 19821250), (10, 13874875), (14, 9910625), (25, 5549950), (35, 3964250), (50, 2774975), (70, 1982125), (101, 1373750), (125, 1109990), (157, 883750), (175, 792850), (202, 686875), (250, 554995), (314, 441875), (350, 396425), (505, 274750), (625, 221998), (707, 196250), (785, 176750), (875, 158570), (1010, 137375), (1099, 126250), (1250, 110999), (1414, 98125), (1570, 88375), (1750, 79285), (2198, 63125), (2525, 54950), (3535, 39250), (3925, 35350), (4375, 31714), (5050, 27475), (5495, 25250), (7070, 19625), (7850, 17675), (8750, 15857), (10990, 12625)]