20824440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1907}}^1$

素因数の和:1941

約数の個数: 128

約数和(自身を含む): 76930560

約数和(自身を除く): 56106120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1820, 1907, 2184, 2730, 3640, 3814, 5460, 5721, 7628, 9535, 10920, 11442, 13349, 15256, 19070, 22884, 24791, 26698, 28605, 38140, 40047, 45768, 49582, 53396, 57210, 66745, 74373, 76280, 80094, 99164, 106792, 114420, 123955, 133490, 148746, 160188, 173537, 198328, 200235, 228840, 247910, 266980, 297492, 320376, 347074, 371865, 400470, 495820, 520611, 533960, 594984, 694148, 743730, 800940, 867685, 991640, 1041222, 1388296, 1487460, 1601880, 1735370, 2082444, 2603055, 2974920, 3470740, 4164888, 5206110, 6941480, 10412220, 20824440]

約数ペア:

[(1, 20824440), (2, 10412220), (3, 6941480), (4, 5206110), (5, 4164888), (6, 3470740), (7, 2974920), (8, 2603055), (10, 2082444), (12, 1735370), (13, 1601880), (14, 1487460), (15, 1388296), (20, 1041222), (21, 991640), (24, 867685), (26, 800940), (28, 743730), (30, 694148), (35, 594984), (39, 533960), (40, 520611), (42, 495820), (52, 400470), (56, 371865), (60, 347074), (65, 320376), (70, 297492), (78, 266980), (84, 247910), (91, 228840), (104, 200235), (105, 198328), (120, 173537), (130, 160188), (140, 148746), (156, 133490), (168, 123955), (182, 114420), (195, 106792), (210, 99164), (260, 80094), (273, 76280), (280, 74373), (312, 66745), (364, 57210), (390, 53396), (420, 49582), (455, 45768), (520, 40047), (546, 38140), (728, 28605), (780, 26698), (840, 24791), (910, 22884), (1092, 19070), (1365, 15256), (1560, 13349), (1820, 11442), (1907, 10920), (2184, 9535), (2730, 7628), (3640, 5721), (3814, 5460)]