65131000

素因数分解:

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

素因数の和:254

約数の個数: 128

約数和(自身を含む): 172523520

約数和(自身を除く): 107392520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 31, 40, 44, 50, 55, 62, 88, 100, 110, 124, 125, 155, 191, 200, 220, 248, 250, 275, 310, 341, 382, 440, 500, 550, 620, 682, 764, 775, 955, 1000, 1100, 1240, 1364, 1375, 1528, 1550, 1705, 1910, 2101, 2200, 2728, 2750, 3100, 3410, 3820, 3875, 4202, 4775, 5500, 5921, 6200, 6820, 7640, 7750, 8404, 8525, 9550, 10505, 11000, 11842, 13640, 15500, 16808, 17050, 19100, 21010, 23684, 23875, 29605, 31000, 34100, 38200, 42020, 42625, 47368, 47750, 52525, 59210, 65131, 68200, 84040, 85250, 95500, 105050, 118420, 130262, 148025, 170500, 191000, 210100, 236840, 260524, 262625, 296050, 325655, 341000, 420200, 521048, 525250, 592100, 651310, 740125, 1050500, 1184200, 1302620, 1480250, 1628275, 2101000, 2605240, 2960500, 3256550, 5921000, 6513100, 8141375, 13026200, 16282750, 32565500, 65131000]

約数ペア:

[(1, 65131000), (2, 32565500), (4, 16282750), (5, 13026200), (8, 8141375), (10, 6513100), (11, 5921000), (20, 3256550), (22, 2960500), (25, 2605240), (31, 2101000), (40, 1628275), (44, 1480250), (50, 1302620), (55, 1184200), (62, 1050500), (88, 740125), (100, 651310), (110, 592100), (124, 525250), (125, 521048), (155, 420200), (191, 341000), (200, 325655), (220, 296050), (248, 262625), (250, 260524), (275, 236840), (310, 210100), (341, 191000), (382, 170500), (440, 148025), (500, 130262), (550, 118420), (620, 105050), (682, 95500), (764, 85250), (775, 84040), (955, 68200), (1000, 65131), (1100, 59210), (1240, 52525), (1364, 47750), (1375, 47368), (1528, 42625), (1550, 42020), (1705, 38200), (1910, 34100), (2101, 31000), (2200, 29605), (2728, 23875), (2750, 23684), (3100, 21010), (3410, 19100), (3820, 17050), (3875, 16808), (4202, 15500), (4775, 13640), (5500, 11842), (5921, 11000), (6200, 10505), (6820, 9550), (7640, 8525), (7750, 8404)]