202648240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1993}}^1$

素因数の和:2078

約数の個数: 80

約数和(自身を含む): 498468096

約数和(自身を除く): 295819856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 41, 62, 80, 82, 124, 155, 164, 205, 248, 310, 328, 410, 496, 620, 656, 820, 1240, 1271, 1640, 1993, 2480, 2542, 3280, 3986, 5084, 6355, 7972, 9965, 10168, 12710, 15944, 19930, 20336, 25420, 31888, 39860, 50840, 61783, 79720, 81713, 101680, 123566, 159440, 163426, 247132, 308915, 326852, 408565, 494264, 617830, 653704, 817130, 988528, 1235660, 1307408, 1634260, 2471320, 2533103, 3268520, 4942640, 5066206, 6537040, 10132412, 12665515, 20264824, 25331030, 40529648, 50662060, 101324120, 202648240]

約数ペア:

[(1, 202648240), (2, 101324120), (4, 50662060), (5, 40529648), (8, 25331030), (10, 20264824), (16, 12665515), (20, 10132412), (31, 6537040), (40, 5066206), (41, 4942640), (62, 3268520), (80, 2533103), (82, 2471320), (124, 1634260), (155, 1307408), (164, 1235660), (205, 988528), (248, 817130), (310, 653704), (328, 617830), (410, 494264), (496, 408565), (620, 326852), (656, 308915), (820, 247132), (1240, 163426), (1271, 159440), (1640, 123566), (1993, 101680), (2480, 81713), (2542, 79720), (3280, 61783), (3986, 50840), (5084, 39860), (6355, 31888), (7972, 25420), (9965, 20336), (10168, 19930), (12710, 15944)]