20227467640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1\times {\mathrm{76261}}^1$

素因数の和:76640

約数の個数: 64

約数和(自身を含む): 48045060000

約数和(自身を除く): 27817592360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 349, 380, 698, 760, 1396, 1745, 2792, 3490, 6631, 6980, 13262, 13960, 26524, 33155, 53048, 66310, 76261, 132620, 152522, 265240, 305044, 381305, 610088, 762610, 1448959, 1525220, 2897918, 3050440, 5795836, 7244795, 11591672, 14489590, 26615089, 28979180, 53230178, 57958360, 106460356, 133075445, 212920712, 266150890, 505686691, 532301780, 1011373382, 1064603560, 2022746764, 2528433455, 4045493528, 5056866910, 10113733820, 20227467640]

約数ペア:

[(1, 20227467640), (2, 10113733820), (4, 5056866910), (5, 4045493528), (8, 2528433455), (10, 2022746764), (19, 1064603560), (20, 1011373382), (38, 532301780), (40, 505686691), (76, 266150890), (95, 212920712), (152, 133075445), (190, 106460356), (349, 57958360), (380, 53230178), (698, 28979180), (760, 26615089), (1396, 14489590), (1745, 11591672), (2792, 7244795), (3490, 5795836), (6631, 3050440), (6980, 2897918), (13262, 1525220), (13960, 1448959), (26524, 762610), (33155, 610088), (53048, 381305), (66310, 305044), (76261, 265240), (132620, 152522)]