311419120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{971}}^1$

素因数の和:1214

約数の個数: 80

約数和(自身を含む): 766558080

約数和(自身を除く): 455138960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 211, 304, 380, 422, 760, 844, 971, 1055, 1520, 1688, 1942, 2110, 3376, 3884, 4009, 4220, 4855, 7768, 8018, 8440, 9710, 15536, 16036, 16880, 18449, 19420, 20045, 32072, 36898, 38840, 40090, 64144, 73796, 77680, 80180, 92245, 147592, 160360, 184490, 204881, 295184, 320720, 368980, 409762, 737960, 819524, 1024405, 1475920, 1639048, 2048810, 3278096, 3892739, 4097620, 7785478, 8195240, 15570956, 16390480, 19463695, 31141912, 38927390, 62283824, 77854780, 155709560, 311419120]

約数ペア:

[(1, 311419120), (2, 155709560), (4, 77854780), (5, 62283824), (8, 38927390), (10, 31141912), (16, 19463695), (19, 16390480), (20, 15570956), (38, 8195240), (40, 7785478), (76, 4097620), (80, 3892739), (95, 3278096), (152, 2048810), (190, 1639048), (211, 1475920), (304, 1024405), (380, 819524), (422, 737960), (760, 409762), (844, 368980), (971, 320720), (1055, 295184), (1520, 204881), (1688, 184490), (1942, 160360), (2110, 147592), (3376, 92245), (3884, 80180), (4009, 77680), (4220, 73796), (4855, 64144), (7768, 40090), (8018, 38840), (8440, 36898), (9710, 32072), (15536, 20045), (16036, 19420), (16880, 18449)]