21639800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:106

約数の個数: 192

約数和(自身を含む): 65620800

約数和(自身を除く): 43981000

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 29, 35, 40, 41, 50, 52, 56, 58, 65, 70, 82, 91, 100, 104, 116, 130, 140, 145, 164, 175, 182, 200, 203, 205, 232, 260, 280, 287, 290, 325, 328, 350, 364, 377, 406, 410, 455, 520, 533, 574, 580, 650, 700, 725, 728, 754, 812, 820, 910, 1015, 1025, 1066, 1148, 1160, 1189, 1300, 1400, 1435, 1450, 1508, 1624, 1640, 1820, 1885, 2030, 2050, 2132, 2275, 2296, 2378, 2600, 2639, 2665, 2870, 2900, 3016, 3640, 3731, 3770, 4060, 4100, 4264, 4550, 4756, 5075, 5278, 5330, 5740, 5800, 5945, 7175, 7462, 7540, 8120, 8200, 8323, 9100, 9425, 9512, 10150, 10556, 10660, 11480, 11890, 13195, 13325, 14350, 14924, 15080, 15457, 16646, 18200, 18655, 18850, 20300, 21112, 21320, 23780, 26390, 26650, 28700, 29725, 29848, 30914, 33292, 37310, 37700, 40600, 41615, 47560, 52780, 53300, 57400, 59450, 61828, 65975, 66584, 74620, 75400, 77285, 83230, 93275, 105560, 106600, 108199, 118900, 123656, 131950, 149240, 154570, 166460, 186550, 208075, 216398, 237800, 263900, 309140, 332920, 373100, 386425, 416150, 432796, 527800, 540995, 618280, 746200, 772850, 832300, 865592, 1081990, 1545700, 1664600, 2163980, 2704975, 3091400, 4327960, 5409950, 10819900, 21639800]

約数ペア:

[(1, 21639800), (2, 10819900), (4, 5409950), (5, 4327960), (7, 3091400), (8, 2704975), (10, 2163980), (13, 1664600), (14, 1545700), (20, 1081990), (25, 865592), (26, 832300), (28, 772850), (29, 746200), (35, 618280), (40, 540995), (41, 527800), (50, 432796), (52, 416150), (56, 386425), (58, 373100), (65, 332920), (70, 309140), (82, 263900), (91, 237800), (100, 216398), (104, 208075), (116, 186550), (130, 166460), (140, 154570), (145, 149240), (164, 131950), (175, 123656), (182, 118900), (200, 108199), (203, 106600), (205, 105560), (232, 93275), (260, 83230), (280, 77285), (287, 75400), (290, 74620), (325, 66584), (328, 65975), (350, 61828), (364, 59450), (377, 57400), (406, 53300), (410, 52780), (455, 47560), (520, 41615), (533, 40600), (574, 37700), (580, 37310), (650, 33292), (700, 30914), (725, 29848), (728, 29725), (754, 28700), (812, 26650), (820, 26390), (910, 23780), (1015, 21320), (1025, 21112), (1066, 20300), (1148, 18850), (1160, 18655), (1189, 18200), (1300, 16646), (1400, 15457), (1435, 15080), (1450, 14924), (1508, 14350), (1624, 13325), (1640, 13195), (1820, 11890), (1885, 11480), (2030, 10660), (2050, 10556), (2132, 10150), (2275, 9512), (2296, 9425), (2378, 9100), (2600, 8323), (2639, 8200), (2665, 8120), (2870, 7540), (2900, 7462), (3016, 7175), (3640, 5945), (3731, 5800), (3770, 5740), (4060, 5330), (4100, 5278), (4264, 5075), (4550, 4756)]