161489900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{491}}^1$

素因数の和:552

約数の個数: 144

約数和(自身を含む): 430472448

約数和(自身を除く): 268982548

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 23, 25, 26, 44, 46, 50, 52, 55, 65, 92, 100, 110, 115, 130, 143, 220, 230, 253, 260, 275, 286, 299, 325, 460, 491, 506, 550, 572, 575, 598, 650, 715, 982, 1012, 1100, 1150, 1196, 1265, 1300, 1430, 1495, 1964, 2300, 2455, 2530, 2860, 2990, 3289, 3575, 4910, 5060, 5401, 5980, 6325, 6383, 6578, 7150, 7475, 9820, 10802, 11293, 12275, 12650, 12766, 13156, 14300, 14950, 16445, 21604, 22586, 24550, 25300, 25532, 27005, 29900, 31915, 32890, 45172, 49100, 54010, 56465, 63830, 65780, 70213, 82225, 108020, 112930, 124223, 127660, 135025, 140426, 146809, 159575, 164450, 225860, 248446, 270050, 280852, 282325, 293618, 319150, 328900, 351065, 496892, 540100, 564650, 587236, 621115, 638300, 702130, 734045, 1129300, 1242230, 1404260, 1468090, 1614899, 1755325, 2484460, 2936180, 3105575, 3229798, 3510650, 3670225, 6211150, 6459596, 7021300, 7340450, 8074495, 12422300, 14680900, 16148990, 32297980, 40372475, 80744950, 161489900]

約数ペア:

[(1, 161489900), (2, 80744950), (4, 40372475), (5, 32297980), (10, 16148990), (11, 14680900), (13, 12422300), (20, 8074495), (22, 7340450), (23, 7021300), (25, 6459596), (26, 6211150), (44, 3670225), (46, 3510650), (50, 3229798), (52, 3105575), (55, 2936180), (65, 2484460), (92, 1755325), (100, 1614899), (110, 1468090), (115, 1404260), (130, 1242230), (143, 1129300), (220, 734045), (230, 702130), (253, 638300), (260, 621115), (275, 587236), (286, 564650), (299, 540100), (325, 496892), (460, 351065), (491, 328900), (506, 319150), (550, 293618), (572, 282325), (575, 280852), (598, 270050), (650, 248446), (715, 225860), (982, 164450), (1012, 159575), (1100, 146809), (1150, 140426), (1196, 135025), (1265, 127660), (1300, 124223), (1430, 112930), (1495, 108020), (1964, 82225), (2300, 70213), (2455, 65780), (2530, 63830), (2860, 56465), (2990, 54010), (3289, 49100), (3575, 45172), (4910, 32890), (5060, 31915), (5401, 29900), (5980, 27005), (6325, 25532), (6383, 25300), (6578, 24550), (7150, 22586), (7475, 21604), (9820, 16445), (10802, 14950), (11293, 14300), (12275, 13156), (12650, 12766)]