31012400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:151

約数の個数: 120

約数和(自身を含む): 80078208

約数和(自身を除く): 49065808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 41, 50, 61, 62, 80, 82, 100, 122, 124, 155, 164, 200, 205, 244, 248, 305, 310, 328, 400, 410, 488, 496, 610, 620, 656, 775, 820, 976, 1025, 1220, 1240, 1271, 1525, 1550, 1640, 1891, 2050, 2440, 2480, 2501, 2542, 3050, 3100, 3280, 3782, 4100, 4880, 5002, 5084, 6100, 6200, 6355, 7564, 8200, 9455, 10004, 10168, 12200, 12400, 12505, 12710, 15128, 16400, 18910, 20008, 20336, 24400, 25010, 25420, 30256, 31775, 37820, 40016, 47275, 50020, 50840, 62525, 63550, 75640, 77531, 94550, 100040, 101680, 125050, 127100, 151280, 155062, 189100, 200080, 250100, 254200, 310124, 378200, 387655, 500200, 508400, 620248, 756400, 775310, 1000400, 1240496, 1550620, 1938275, 3101240, 3876550, 6202480, 7753100, 15506200, 31012400]

約数ペア:

[(1, 31012400), (2, 15506200), (4, 7753100), (5, 6202480), (8, 3876550), (10, 3101240), (16, 1938275), (20, 1550620), (25, 1240496), (31, 1000400), (40, 775310), (41, 756400), (50, 620248), (61, 508400), (62, 500200), (80, 387655), (82, 378200), (100, 310124), (122, 254200), (124, 250100), (155, 200080), (164, 189100), (200, 155062), (205, 151280), (244, 127100), (248, 125050), (305, 101680), (310, 100040), (328, 94550), (400, 77531), (410, 75640), (488, 63550), (496, 62525), (610, 50840), (620, 50020), (656, 47275), (775, 40016), (820, 37820), (976, 31775), (1025, 30256), (1220, 25420), (1240, 25010), (1271, 24400), (1525, 20336), (1550, 20008), (1640, 18910), (1891, 16400), (2050, 15128), (2440, 12710), (2480, 12505), (2501, 12400), (2542, 12200), (3050, 10168), (3100, 10004), (3280, 9455), (3782, 8200), (4100, 7564), (4880, 6355), (5002, 6200), (5084, 6100)]