202156580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^2$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 464835840

約数和(自身を除く): 262679260

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 131, 155, 190, 262, 310, 380, 524, 589, 620, 655, 1178, 1310, 2356, 2489, 2620, 2945, 4061, 4978, 5890, 8122, 9956, 11780, 12445, 16244, 17161, 20305, 24890, 34322, 40610, 49780, 68644, 77159, 81220, 85805, 154318, 171610, 308636, 326059, 343220, 385795, 531991, 652118, 771590, 1063982, 1304236, 1543180, 1630295, 2127964, 2659955, 3260590, 5319910, 6521180, 10107829, 10639820, 20215658, 40431316, 50539145, 101078290, 202156580]

約数ペア:

[(1, 202156580), (2, 101078290), (4, 50539145), (5, 40431316), (10, 20215658), (19, 10639820), (20, 10107829), (31, 6521180), (38, 5319910), (62, 3260590), (76, 2659955), (95, 2127964), (124, 1630295), (131, 1543180), (155, 1304236), (190, 1063982), (262, 771590), (310, 652118), (380, 531991), (524, 385795), (589, 343220), (620, 326059), (655, 308636), (1178, 171610), (1310, 154318), (2356, 85805), (2489, 81220), (2620, 77159), (2945, 68644), (4061, 49780), (4978, 40610), (5890, 34322), (8122, 24890), (9956, 20305), (11780, 17161), (12445, 16244)]