18991380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{433}}^1$

素因数の和:505

約数の個数: 96

約数和(自身を含む): 57746304

約数和(自身を除く): 38754924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 43, 51, 60, 68, 85, 86, 102, 129, 170, 172, 204, 215, 255, 258, 340, 430, 433, 510, 516, 645, 731, 860, 866, 1020, 1290, 1299, 1462, 1732, 2165, 2193, 2580, 2598, 2924, 3655, 4330, 4386, 5196, 6495, 7310, 7361, 8660, 8772, 10965, 12990, 14620, 14722, 18619, 21930, 22083, 25980, 29444, 36805, 37238, 43860, 44166, 55857, 73610, 74476, 88332, 93095, 110415, 111714, 147220, 186190, 220830, 223428, 279285, 316523, 372380, 441660, 558570, 633046, 949569, 1117140, 1266092, 1582615, 1899138, 3165230, 3798276, 4747845, 6330460, 9495690, 18991380]

約数ペア:

[(1, 18991380), (2, 9495690), (3, 6330460), (4, 4747845), (5, 3798276), (6, 3165230), (10, 1899138), (12, 1582615), (15, 1266092), (17, 1117140), (20, 949569), (30, 633046), (34, 558570), (43, 441660), (51, 372380), (60, 316523), (68, 279285), (85, 223428), (86, 220830), (102, 186190), (129, 147220), (170, 111714), (172, 110415), (204, 93095), (215, 88332), (255, 74476), (258, 73610), (340, 55857), (430, 44166), (433, 43860), (510, 37238), (516, 36805), (645, 29444), (731, 25980), (860, 22083), (866, 21930), (1020, 18619), (1290, 14722), (1299, 14620), (1462, 12990), (1732, 10965), (2165, 8772), (2193, 8660), (2580, 7361), (2598, 7310), (2924, 6495), (3655, 5196), (4330, 4386)]