19477300

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:209

約数の個数: 72

約数和(自身を含む): 44774912

約数和(自身を除く): 25297612

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 61, 62, 100, 103, 122, 124, 155, 206, 244, 305, 310, 412, 515, 610, 620, 775, 1030, 1220, 1525, 1550, 1891, 2060, 2575, 3050, 3100, 3193, 3782, 5150, 6100, 6283, 6386, 7564, 9455, 10300, 12566, 12772, 15965, 18910, 25132, 31415, 31930, 37820, 47275, 62830, 63860, 79825, 94550, 125660, 157075, 159650, 189100, 194773, 314150, 319300, 389546, 628300, 779092, 973865, 1947730, 3895460, 4869325, 9738650, 19477300]

約数ペア:

[(1, 19477300), (2, 9738650), (4, 4869325), (5, 3895460), (10, 1947730), (20, 973865), (25, 779092), (31, 628300), (50, 389546), (61, 319300), (62, 314150), (100, 194773), (103, 189100), (122, 159650), (124, 157075), (155, 125660), (206, 94550), (244, 79825), (305, 63860), (310, 62830), (412, 47275), (515, 37820), (610, 31930), (620, 31415), (775, 25132), (1030, 18910), (1220, 15965), (1525, 12772), (1550, 12566), (1891, 10300), (2060, 9455), (2575, 7564), (3050, 6386), (3100, 6283), (3193, 6100), (3782, 5150)]