245899900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{331}}^1$

素因数の和:404

約数の個数: 144

約数和(自身を含む): 622460160

約数和(自身を除く): 376560260

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 23, 25, 34, 38, 46, 50, 68, 76, 85, 92, 95, 100, 115, 170, 190, 230, 323, 331, 340, 380, 391, 425, 437, 460, 475, 575, 646, 662, 782, 850, 874, 950, 1150, 1292, 1324, 1564, 1615, 1655, 1700, 1748, 1900, 1955, 2185, 2300, 3230, 3310, 3910, 4370, 5627, 6289, 6460, 6620, 7429, 7613, 7820, 8075, 8275, 8740, 9775, 10925, 11254, 12578, 14858, 15226, 16150, 16550, 19550, 21850, 22508, 25156, 28135, 29716, 30452, 31445, 32300, 33100, 37145, 38065, 39100, 43700, 56270, 62890, 74290, 76130, 106913, 112540, 125780, 129421, 140675, 144647, 148580, 152260, 157225, 185725, 190325, 213826, 258842, 281350, 289294, 314450, 371450, 380650, 427652, 517684, 534565, 562700, 578588, 628900, 647105, 723235, 742900, 761300, 1069130, 1294210, 1446470, 2138260, 2458999, 2588420, 2672825, 2892940, 3235525, 3616175, 4917998, 5345650, 6471050, 7232350, 9835996, 10691300, 12294995, 12942100, 14464700, 24589990, 49179980, 61474975, 122949950, 245899900]

約数ペア:

[(1, 245899900), (2, 122949950), (4, 61474975), (5, 49179980), (10, 24589990), (17, 14464700), (19, 12942100), (20, 12294995), (23, 10691300), (25, 9835996), (34, 7232350), (38, 6471050), (46, 5345650), (50, 4917998), (68, 3616175), (76, 3235525), (85, 2892940), (92, 2672825), (95, 2588420), (100, 2458999), (115, 2138260), (170, 1446470), (190, 1294210), (230, 1069130), (323, 761300), (331, 742900), (340, 723235), (380, 647105), (391, 628900), (425, 578588), (437, 562700), (460, 534565), (475, 517684), (575, 427652), (646, 380650), (662, 371450), (782, 314450), (850, 289294), (874, 281350), (950, 258842), (1150, 213826), (1292, 190325), (1324, 185725), (1564, 157225), (1615, 152260), (1655, 148580), (1700, 144647), (1748, 140675), (1900, 129421), (1955, 125780), (2185, 112540), (2300, 106913), (3230, 76130), (3310, 74290), (3910, 62890), (4370, 56270), (5627, 43700), (6289, 39100), (6460, 38065), (6620, 37145), (7429, 33100), (7613, 32300), (7820, 31445), (8075, 30452), (8275, 29716), (8740, 28135), (9775, 25156), (10925, 22508), (11254, 21850), (12578, 19550), (14858, 16550), (15226, 16150)]