161021700

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{419}}^1$

素因数の和:507

約数の個数: 216

約数和(自身を含む): 587670720

約数和(自身を除く): 426649020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 60, 61, 63, 70, 75, 84, 90, 100, 105, 122, 126, 140, 150, 175, 180, 183, 210, 225, 244, 252, 300, 305, 315, 350, 366, 419, 420, 427, 450, 525, 549, 610, 630, 700, 732, 838, 854, 900, 915, 1050, 1098, 1220, 1257, 1260, 1281, 1525, 1575, 1676, 1708, 1830, 2095, 2100, 2135, 2196, 2514, 2562, 2745, 2933, 3050, 3150, 3660, 3771, 3843, 4190, 4270, 4575, 5028, 5124, 5490, 5866, 6100, 6285, 6300, 6405, 7542, 7686, 8380, 8540, 8799, 9150, 10475, 10675, 10980, 11732, 12570, 12810, 13725, 14665, 15084, 15372, 17598, 18300, 18855, 19215, 20950, 21350, 25140, 25559, 25620, 26397, 27450, 29330, 31425, 32025, 35196, 37710, 38430, 41900, 42700, 43995, 51118, 52794, 54900, 58660, 62850, 64050, 73325, 75420, 76677, 76860, 87990, 94275, 96075, 102236, 105588, 125700, 127795, 128100, 131985, 146650, 153354, 175980, 178913, 188550, 192150, 219975, 230031, 255590, 263970, 293300, 306708, 357826, 377100, 383385, 384300, 439950, 460062, 511180, 527940, 536739, 638975, 659925, 715652, 766770, 879900, 894565, 920124, 1073478, 1150155, 1277950, 1319850, 1533540, 1610217, 1789130, 1916925, 2146956, 2300310, 2555900, 2639700, 2683695, 3220434, 3578260, 3833850, 4472825, 4600620, 5367390, 5750775, 6440868, 7667700, 8051085, 8945650, 10734780, 11501550, 13418475, 16102170, 17891300, 23003100, 26836950, 32204340, 40255425, 53673900, 80510850, 161021700]

約数ペア:

[(1, 161021700), (2, 80510850), (3, 53673900), (4, 40255425), (5, 32204340), (6, 26836950), (7, 23003100), (9, 17891300), (10, 16102170), (12, 13418475), (14, 11501550), (15, 10734780), (18, 8945650), (20, 8051085), (21, 7667700), (25, 6440868), (28, 5750775), (30, 5367390), (35, 4600620), (36, 4472825), (42, 3833850), (45, 3578260), (50, 3220434), (60, 2683695), (61, 2639700), (63, 2555900), (70, 2300310), (75, 2146956), (84, 1916925), (90, 1789130), (100, 1610217), (105, 1533540), (122, 1319850), (126, 1277950), (140, 1150155), (150, 1073478), (175, 920124), (180, 894565), (183, 879900), (210, 766770), (225, 715652), (244, 659925), (252, 638975), (300, 536739), (305, 527940), (315, 511180), (350, 460062), (366, 439950), (419, 384300), (420, 383385), (427, 377100), (450, 357826), (525, 306708), (549, 293300), (610, 263970), (630, 255590), (700, 230031), (732, 219975), (838, 192150), (854, 188550), (900, 178913), (915, 175980), (1050, 153354), (1098, 146650), (1220, 131985), (1257, 128100), (1260, 127795), (1281, 125700), (1525, 105588), (1575, 102236), (1676, 96075), (1708, 94275), (1830, 87990), (2095, 76860), (2100, 76677), (2135, 75420), (2196, 73325), (2514, 64050), (2562, 62850), (2745, 58660), (2933, 54900), (3050, 52794), (3150, 51118), (3660, 43995), (3771, 42700), (3843, 41900), (4190, 38430), (4270, 37710), (4575, 35196), (5028, 32025), (5124, 31425), (5490, 29330), (5866, 27450), (6100, 26397), (6285, 25620), (6300, 25559), (6405, 25140), (7542, 21350), (7686, 20950), (8380, 19215), (8540, 18855), (8799, 18300), (9150, 17598), (10475, 15372), (10675, 15084), (10980, 14665), (11732, 13725), (12570, 12810)]