198981390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{227}}^1\times {\mathrm{479}}^1$

素因数の和:777

約数の個数: 64

約数和(自身を含む): 488540160

約数和(自身を除く): 289558770

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 122, 183, 227, 305, 366, 454, 479, 610, 681, 915, 958, 1135, 1362, 1437, 1830, 2270, 2395, 2874, 3405, 4790, 6810, 7185, 13847, 14370, 27694, 29219, 41541, 58438, 69235, 83082, 87657, 108733, 138470, 146095, 175314, 207705, 217466, 292190, 326199, 415410, 438285, 543665, 652398, 876570, 1087330, 1630995, 3261990, 6632713, 13265426, 19898139, 33163565, 39796278, 66327130, 99490695, 198981390]

約数ペア:

[(1, 198981390), (2, 99490695), (3, 66327130), (5, 39796278), (6, 33163565), (10, 19898139), (15, 13265426), (30, 6632713), (61, 3261990), (122, 1630995), (183, 1087330), (227, 876570), (305, 652398), (366, 543665), (454, 438285), (479, 415410), (610, 326199), (681, 292190), (915, 217466), (958, 207705), (1135, 175314), (1362, 146095), (1437, 138470), (1830, 108733), (2270, 87657), (2395, 83082), (2874, 69235), (3405, 58438), (4790, 41541), (6810, 29219), (7185, 27694), (13847, 14370)]