263129240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:345

約数の個数: 128

約数和(自身を含む): 676823040

約数和(自身を除く): 413693800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 101, 110, 124, 155, 191, 202, 220, 248, 310, 341, 382, 404, 440, 505, 620, 682, 764, 808, 955, 1010, 1111, 1240, 1364, 1528, 1705, 1910, 2020, 2101, 2222, 2728, 3131, 3410, 3820, 4040, 4202, 4444, 5555, 5921, 6262, 6820, 7640, 8404, 8888, 10505, 11110, 11842, 12524, 13640, 15655, 16808, 19291, 21010, 22220, 23684, 25048, 29605, 31310, 34441, 38582, 42020, 44440, 47368, 59210, 62620, 65131, 68882, 77164, 84040, 96455, 118420, 125240, 130262, 137764, 154328, 172205, 192910, 212201, 236840, 260524, 275528, 325655, 344410, 385820, 424402, 521048, 598021, 651310, 688820, 771640, 848804, 1061005, 1196042, 1302620, 1377640, 1697608, 2122010, 2392084, 2605240, 2990105, 4244020, 4784168, 5980210, 6578231, 8488040, 11960420, 13156462, 23920840, 26312924, 32891155, 52625848, 65782310, 131564620, 263129240]

約数ペア:

[(1, 263129240), (2, 131564620), (4, 65782310), (5, 52625848), (8, 32891155), (10, 26312924), (11, 23920840), (20, 13156462), (22, 11960420), (31, 8488040), (40, 6578231), (44, 5980210), (55, 4784168), (62, 4244020), (88, 2990105), (101, 2605240), (110, 2392084), (124, 2122010), (155, 1697608), (191, 1377640), (202, 1302620), (220, 1196042), (248, 1061005), (310, 848804), (341, 771640), (382, 688820), (404, 651310), (440, 598021), (505, 521048), (620, 424402), (682, 385820), (764, 344410), (808, 325655), (955, 275528), (1010, 260524), (1111, 236840), (1240, 212201), (1364, 192910), (1528, 172205), (1705, 154328), (1910, 137764), (2020, 130262), (2101, 125240), (2222, 118420), (2728, 96455), (3131, 84040), (3410, 77164), (3820, 68882), (4040, 65131), (4202, 62620), (4444, 59210), (5555, 47368), (5921, 44440), (6262, 42020), (6820, 38582), (7640, 34441), (8404, 31310), (8888, 29605), (10505, 25048), (11110, 23684), (11842, 22220), (12524, 21010), (13640, 19291), (15655, 16808)]