258535040

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:290

約数の個数: 128

約数和(自身を含む): 649797120

約数和(自身を除く): 391262080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 83, 124, 128, 155, 157, 160, 166, 248, 310, 314, 320, 332, 415, 496, 620, 628, 640, 664, 785, 830, 992, 1240, 1256, 1328, 1570, 1660, 1984, 2480, 2512, 2573, 2656, 3140, 3320, 3968, 4867, 4960, 5024, 5146, 5312, 6280, 6640, 9734, 9920, 10048, 10292, 10624, 12560, 12865, 13031, 13280, 19468, 19840, 20096, 20584, 24335, 25120, 25730, 26062, 26560, 38936, 41168, 48670, 50240, 51460, 52124, 53120, 65155, 77872, 82336, 97340, 100480, 102920, 104248, 130310, 155744, 164672, 194680, 205840, 208496, 260620, 311488, 329344, 389360, 403961, 411680, 416992, 521240, 622976, 778720, 807922, 823360, 833984, 1042480, 1557440, 1615844, 1646720, 1667968, 2019805, 2084960, 3114880, 3231688, 4039610, 4169920, 6463376, 8079220, 8339840, 12926752, 16158440, 25853504, 32316880, 51707008, 64633760, 129267520, 258535040]

約数ペア:

[(1, 258535040), (2, 129267520), (4, 64633760), (5, 51707008), (8, 32316880), (10, 25853504), (16, 16158440), (20, 12926752), (31, 8339840), (32, 8079220), (40, 6463376), (62, 4169920), (64, 4039610), (80, 3231688), (83, 3114880), (124, 2084960), (128, 2019805), (155, 1667968), (157, 1646720), (160, 1615844), (166, 1557440), (248, 1042480), (310, 833984), (314, 823360), (320, 807922), (332, 778720), (415, 622976), (496, 521240), (620, 416992), (628, 411680), (640, 403961), (664, 389360), (785, 329344), (830, 311488), (992, 260620), (1240, 208496), (1256, 205840), (1328, 194680), (1570, 164672), (1660, 155744), (1984, 130310), (2480, 104248), (2512, 102920), (2573, 100480), (2656, 97340), (3140, 82336), (3320, 77872), (3968, 65155), (4867, 53120), (4960, 52124), (5024, 51460), (5146, 50240), (5312, 48670), (6280, 41168), (6640, 38936), (9734, 26560), (9920, 26062), (10048, 25730), (10292, 25120), (10624, 24335), (12560, 20584), (12865, 20096), (13031, 19840), (13280, 19468)]