78638910

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19709}}^1$

素因数の和:19745

約数の個数: 64

約数和(自身を含む): 227059200

約数和(自身を除く): 148420290

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 114, 133, 190, 210, 266, 285, 399, 570, 665, 798, 1330, 1995, 3990, 19709, 39418, 59127, 98545, 118254, 137963, 197090, 275926, 295635, 374471, 413889, 591270, 689815, 748942, 827778, 1123413, 1379630, 1872355, 2069445, 2246826, 2621297, 3744710, 4138890, 5242594, 5617065, 7863891, 11234130, 13106485, 15727782, 26212970, 39319455, 78638910]

約数ペア:

[(1, 78638910), (2, 39319455), (3, 26212970), (5, 15727782), (6, 13106485), (7, 11234130), (10, 7863891), (14, 5617065), (15, 5242594), (19, 4138890), (21, 3744710), (30, 2621297), (35, 2246826), (38, 2069445), (42, 1872355), (57, 1379630), (70, 1123413), (95, 827778), (105, 748942), (114, 689815), (133, 591270), (190, 413889), (210, 374471), (266, 295635), (285, 275926), (399, 197090), (570, 137963), (665, 118254), (798, 98545), (1330, 59127), (1995, 39418), (3990, 19709)]