645594350

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{761}}^1$

素因数の和:858

約数の個数: 72

約数和(自身を含む): 1295997408

約数和(自身を除く): 650403058

約数列:

[1, 2, 5, 10, 19, 25, 38, 47, 50, 94, 95, 190, 235, 361, 470, 475, 722, 761, 893, 950, 1175, 1522, 1786, 1805, 2350, 3610, 3805, 4465, 7610, 8930, 9025, 14459, 16967, 18050, 19025, 22325, 28918, 33934, 35767, 38050, 44650, 71534, 72295, 84835, 144590, 169670, 178835, 274721, 357670, 361475, 424175, 549442, 679573, 722950, 848350, 894175, 1359146, 1373605, 1788350, 2747210, 3397865, 6795730, 6868025, 12911887, 13736050, 16989325, 25823774, 33978650, 64559435, 129118870, 322797175, 645594350]

約数ペア:

[(1, 645594350), (2, 322797175), (5, 129118870), (10, 64559435), (19, 33978650), (25, 25823774), (38, 16989325), (47, 13736050), (50, 12911887), (94, 6868025), (95, 6795730), (190, 3397865), (235, 2747210), (361, 1788350), (470, 1373605), (475, 1359146), (722, 894175), (761, 848350), (893, 722950), (950, 679573), (1175, 549442), (1522, 424175), (1786, 361475), (1805, 357670), (2350, 274721), (3610, 178835), (3805, 169670), (4465, 144590), (7610, 84835), (8930, 72295), (9025, 71534), (14459, 44650), (16967, 38050), (18050, 35767), (19025, 33934), (22325, 28918)]