19712917525

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{379}}^1\times {\mathrm{15643}}^1$

素因数の和:16058

約数の個数: 48

約数和(自身を含む): 29485811200

約数和(自身を除く): 9772893675

約数列:

[1, 5, 7, 19, 25, 35, 95, 133, 175, 379, 475, 665, 1895, 2653, 3325, 7201, 9475, 13265, 15643, 36005, 50407, 66325, 78215, 109501, 180025, 252035, 297217, 391075, 547505, 1260175, 1486085, 2080519, 2737525, 5928697, 7430425, 10402595, 29643485, 41500879, 52012975, 112645243, 148217425, 207504395, 563226215, 788516701, 1037521975, 2816131075, 3942583505, 19712917525]

約数ペア:

[(1, 19712917525), (5, 3942583505), (7, 2816131075), (19, 1037521975), (25, 788516701), (35, 563226215), (95, 207504395), (133, 148217425), (175, 112645243), (379, 52012975), (475, 41500879), (665, 29643485), (1895, 10402595), (2653, 7430425), (3325, 5928697), (7201, 2737525), (9475, 2080519), (13265, 1486085), (15643, 1260175), (36005, 547505), (50407, 391075), (66325, 297217), (78215, 252035), (109501, 180025)]