202199920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{977}}^1$

素因数の和:1202

約数の個数: 80

約数和(自身を含む): 509342400

約数和(自身を除く): 307142480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 199, 208, 260, 398, 520, 796, 977, 995, 1040, 1592, 1954, 1990, 2587, 3184, 3908, 3980, 4885, 5174, 7816, 7960, 9770, 10348, 12701, 12935, 15632, 15920, 19540, 20696, 25402, 25870, 39080, 41392, 50804, 51740, 63505, 78160, 101608, 103480, 127010, 194423, 203216, 206960, 254020, 388846, 508040, 777692, 972115, 1016080, 1555384, 1944230, 2527499, 3110768, 3888460, 5054998, 7776920, 10109996, 12637495, 15553840, 20219992, 25274990, 40439984, 50549980, 101099960, 202199920]

約数ペア:

[(1, 202199920), (2, 101099960), (4, 50549980), (5, 40439984), (8, 25274990), (10, 20219992), (13, 15553840), (16, 12637495), (20, 10109996), (26, 7776920), (40, 5054998), (52, 3888460), (65, 3110768), (80, 2527499), (104, 1944230), (130, 1555384), (199, 1016080), (208, 972115), (260, 777692), (398, 508040), (520, 388846), (796, 254020), (977, 206960), (995, 203216), (1040, 194423), (1592, 127010), (1954, 103480), (1990, 101608), (2587, 78160), (3184, 63505), (3908, 51740), (3980, 50804), (4885, 41392), (5174, 39080), (7816, 25870), (7960, 25402), (9770, 20696), (10348, 19540), (12701, 15920), (12935, 15632)]