17815980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{251}}^1$

素因数の和:296

約数の個数: 144

約数和(自身を含む): 61979904

約数和(自身を除く): 44163924

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 169, 182, 195, 210, 251, 260, 273, 338, 364, 390, 420, 455, 502, 507, 546, 676, 753, 780, 845, 910, 1004, 1014, 1092, 1183, 1255, 1365, 1506, 1690, 1757, 1820, 2028, 2366, 2510, 2535, 2730, 3012, 3263, 3380, 3514, 3549, 3765, 4732, 5020, 5070, 5271, 5460, 5915, 6526, 7028, 7098, 7530, 8785, 9789, 10140, 10542, 11830, 13052, 14196, 15060, 16315, 17570, 17745, 19578, 21084, 22841, 23660, 26355, 32630, 35140, 35490, 39156, 42419, 45682, 48945, 52710, 65260, 68523, 70980, 84838, 91364, 97890, 105420, 114205, 127257, 137046, 169676, 195780, 212095, 228410, 254514, 274092, 296933, 342615, 424190, 456820, 509028, 593866, 636285, 685230, 848380, 890799, 1187732, 1272570, 1370460, 1484665, 1781598, 2545140, 2969330, 3563196, 4453995, 5938660, 8907990, 17815980]

約数ペア:

[(1, 17815980), (2, 8907990), (3, 5938660), (4, 4453995), (5, 3563196), (6, 2969330), (7, 2545140), (10, 1781598), (12, 1484665), (13, 1370460), (14, 1272570), (15, 1187732), (20, 890799), (21, 848380), (26, 685230), (28, 636285), (30, 593866), (35, 509028), (39, 456820), (42, 424190), (52, 342615), (60, 296933), (65, 274092), (70, 254514), (78, 228410), (84, 212095), (91, 195780), (105, 169676), (130, 137046), (140, 127257), (156, 114205), (169, 105420), (182, 97890), (195, 91364), (210, 84838), (251, 70980), (260, 68523), (273, 65260), (338, 52710), (364, 48945), (390, 45682), (420, 42419), (455, 39156), (502, 35490), (507, 35140), (546, 32630), (676, 26355), (753, 23660), (780, 22841), (845, 21084), (910, 19578), (1004, 17745), (1014, 17570), (1092, 16315), (1183, 15060), (1255, 14196), (1365, 13052), (1506, 11830), (1690, 10542), (1757, 10140), (1820, 9789), (2028, 8785), (2366, 7530), (2510, 7098), (2535, 7028), (2730, 6526), (3012, 5915), (3263, 5460), (3380, 5271), (3514, 5070), (3549, 5020), (3765, 4732)]