64750100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{643}}^1$

素因数の和:729

約数の個数: 72

約数和(自身を含む): 150927840

約数和(自身を除く): 86177740

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 53, 76, 95, 100, 106, 190, 212, 265, 380, 475, 530, 643, 950, 1007, 1060, 1286, 1325, 1900, 2014, 2572, 2650, 3215, 4028, 5035, 5300, 6430, 10070, 12217, 12860, 16075, 20140, 24434, 25175, 32150, 34079, 48868, 50350, 61085, 64300, 68158, 100700, 122170, 136316, 170395, 244340, 305425, 340790, 610850, 647501, 681580, 851975, 1221700, 1295002, 1703950, 2590004, 3237505, 3407900, 6475010, 12950020, 16187525, 32375050, 64750100]

約数ペア:

[(1, 64750100), (2, 32375050), (4, 16187525), (5, 12950020), (10, 6475010), (19, 3407900), (20, 3237505), (25, 2590004), (38, 1703950), (50, 1295002), (53, 1221700), (76, 851975), (95, 681580), (100, 647501), (106, 610850), (190, 340790), (212, 305425), (265, 244340), (380, 170395), (475, 136316), (530, 122170), (643, 100700), (950, 68158), (1007, 64300), (1060, 61085), (1286, 50350), (1325, 48868), (1900, 34079), (2014, 32150), (2572, 25175), (2650, 24434), (3215, 20140), (4028, 16075), (5035, 12860), (5300, 12217), (6430, 10070)]