208519300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{907}}^1$

素因数の和:962

約数の個数: 108

約数和(自身を含む): 524115760

約数和(自身を除く): 315596460

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 121, 190, 209, 220, 242, 275, 380, 418, 475, 484, 550, 605, 836, 907, 950, 1045, 1100, 1210, 1814, 1900, 2090, 2299, 2420, 3025, 3628, 4180, 4535, 4598, 5225, 6050, 9070, 9196, 9977, 10450, 11495, 12100, 17233, 18140, 19954, 20900, 22675, 22990, 34466, 39908, 45350, 45980, 49885, 57475, 68932, 86165, 90700, 99770, 109747, 114950, 172330, 189563, 199540, 219494, 229900, 249425, 344660, 379126, 430825, 438988, 498850, 548735, 758252, 861650, 947815, 997700, 1097470, 1723300, 1895630, 2085193, 2194940, 2743675, 3791260, 4170386, 4739075, 5487350, 8340772, 9478150, 10425965, 10974700, 18956300, 20851930, 41703860, 52129825, 104259650, 208519300]

約数ペア:

[(1, 208519300), (2, 104259650), (4, 52129825), (5, 41703860), (10, 20851930), (11, 18956300), (19, 10974700), (20, 10425965), (22, 9478150), (25, 8340772), (38, 5487350), (44, 4739075), (50, 4170386), (55, 3791260), (76, 2743675), (95, 2194940), (100, 2085193), (110, 1895630), (121, 1723300), (190, 1097470), (209, 997700), (220, 947815), (242, 861650), (275, 758252), (380, 548735), (418, 498850), (475, 438988), (484, 430825), (550, 379126), (605, 344660), (836, 249425), (907, 229900), (950, 219494), (1045, 199540), (1100, 189563), (1210, 172330), (1814, 114950), (1900, 109747), (2090, 99770), (2299, 90700), (2420, 86165), (3025, 68932), (3628, 57475), (4180, 49885), (4535, 45980), (4598, 45350), (5225, 39908), (6050, 34466), (9070, 22990), (9196, 22675), (9977, 20900), (10450, 19954), (11495, 18140), (12100, 17233)]