278325540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1\times {\mathrm{197}}^1$

素因数の和:426

約数の個数: 144

約数和(自身を含む): 871782912

約数和(自身を除く): 593457372

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 167, 180, 188, 197, 235, 282, 334, 394, 423, 470, 501, 564, 591, 668, 705, 788, 835, 846, 940, 985, 1002, 1182, 1410, 1503, 1670, 1692, 1773, 1970, 2004, 2115, 2364, 2505, 2820, 2955, 3006, 3340, 3546, 3940, 4230, 5010, 5910, 6012, 7092, 7515, 7849, 8460, 8865, 9259, 10020, 11820, 15030, 15698, 17730, 18518, 23547, 27777, 30060, 31396, 32899, 35460, 37036, 39245, 46295, 47094, 55554, 65798, 70641, 78490, 83331, 92590, 94188, 98697, 111108, 117735, 131596, 138885, 141282, 156980, 164495, 166662, 185180, 197394, 235470, 277770, 282564, 296091, 328990, 333324, 353205, 394788, 416655, 470940, 493485, 555540, 592182, 657980, 706410, 833310, 986970, 1184364, 1412820, 1480455, 1546253, 1666620, 1973940, 2960910, 3092506, 4638759, 5921820, 6185012, 7731265, 9277518, 13916277, 15462530, 18555036, 23193795, 27832554, 30925060, 46387590, 55665108, 69581385, 92775180, 139162770, 278325540]

約数ペア:

[(1, 278325540), (2, 139162770), (3, 92775180), (4, 69581385), (5, 55665108), (6, 46387590), (9, 30925060), (10, 27832554), (12, 23193795), (15, 18555036), (18, 15462530), (20, 13916277), (30, 9277518), (36, 7731265), (45, 6185012), (47, 5921820), (60, 4638759), (90, 3092506), (94, 2960910), (141, 1973940), (167, 1666620), (180, 1546253), (188, 1480455), (197, 1412820), (235, 1184364), (282, 986970), (334, 833310), (394, 706410), (423, 657980), (470, 592182), (501, 555540), (564, 493485), (591, 470940), (668, 416655), (705, 394788), (788, 353205), (835, 333324), (846, 328990), (940, 296091), (985, 282564), (1002, 277770), (1182, 235470), (1410, 197394), (1503, 185180), (1670, 166662), (1692, 164495), (1773, 156980), (1970, 141282), (2004, 138885), (2115, 131596), (2364, 117735), (2505, 111108), (2820, 98697), (2955, 94188), (3006, 92590), (3340, 83331), (3546, 78490), (3940, 70641), (4230, 65798), (5010, 55554), (5910, 47094), (6012, 46295), (7092, 39245), (7515, 37036), (7849, 35460), (8460, 32899), (8865, 31396), (9259, 30060), (10020, 27777), (11820, 23547), (15030, 18518), (15698, 17730)]