71900530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:355

約数の個数: 64

約数和(自身を含む): 147329280

約数和(自身を除く): 75428750

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 139, 173, 230, 278, 299, 346, 598, 695, 865, 1390, 1495, 1730, 1807, 2249, 2990, 3197, 3614, 3979, 4498, 6394, 7958, 9035, 11245, 15985, 18070, 19895, 22490, 24047, 31970, 39790, 41561, 48094, 51727, 83122, 103454, 120235, 207805, 240470, 258635, 312611, 415610, 517270, 553081, 625222, 1106162, 1563055, 2765405, 3126110, 5530810, 7190053, 14380106, 35950265, 71900530]

約数ペア:

[(1, 71900530), (2, 35950265), (5, 14380106), (10, 7190053), (13, 5530810), (23, 3126110), (26, 2765405), (46, 1563055), (65, 1106162), (115, 625222), (130, 553081), (139, 517270), (173, 415610), (230, 312611), (278, 258635), (299, 240470), (346, 207805), (598, 120235), (695, 103454), (865, 83122), (1390, 51727), (1495, 48094), (1730, 41561), (1807, 39790), (2249, 31970), (2990, 24047), (3197, 22490), (3614, 19895), (3979, 18070), (4498, 15985), (6394, 11245), (7958, 9035)]