209219501900

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{332993}}^1$

素因数の和:333171

約数の個数: 72

約数和(自身を含む): 465930532704

約数和(自身を除く): 256711030804

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 103, 122, 206, 244, 305, 412, 515, 610, 1030, 1220, 1525, 2060, 2575, 3050, 5150, 6100, 6283, 10300, 12566, 25132, 31415, 62830, 125660, 157075, 314150, 332993, 628300, 665986, 1331972, 1664965, 3329930, 6659860, 8324825, 16649650, 20312573, 33299300, 34298279, 40625146, 68596558, 81250292, 101562865, 137193116, 171491395, 203125730, 342982790, 406251460, 507814325, 685965580, 857456975, 1015628650, 1714913950, 2031257300, 2092195019, 3429827900, 4184390038, 8368780076, 10460975095, 20921950190, 41843900380, 52304875475, 104609750950, 209219501900]

約数ペア:

[(1, 209219501900), (2, 104609750950), (4, 52304875475), (5, 41843900380), (10, 20921950190), (20, 10460975095), (25, 8368780076), (50, 4184390038), (61, 3429827900), (100, 2092195019), (103, 2031257300), (122, 1714913950), (206, 1015628650), (244, 857456975), (305, 685965580), (412, 507814325), (515, 406251460), (610, 342982790), (1030, 203125730), (1220, 171491395), (1525, 137193116), (2060, 101562865), (2575, 81250292), (3050, 68596558), (5150, 40625146), (6100, 34298279), (6283, 33299300), (10300, 20312573), (12566, 16649650), (25132, 8324825), (31415, 6659860), (62830, 3329930), (125660, 1664965), (157075, 1331972), (314150, 665986), (332993, 628300)]