20469540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:218

約数の個数: 192

約数和(自身を含む): 74059776

約数和(自身を除く): 53590236

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 23, 26, 28, 30, 35, 39, 42, 46, 52, 60, 65, 69, 70, 78, 84, 91, 92, 105, 115, 130, 138, 140, 156, 161, 163, 182, 195, 210, 230, 260, 273, 276, 299, 322, 326, 345, 364, 390, 420, 455, 460, 483, 489, 546, 598, 644, 652, 690, 780, 805, 815, 897, 910, 966, 978, 1092, 1141, 1196, 1365, 1380, 1495, 1610, 1630, 1794, 1820, 1932, 1956, 2093, 2119, 2282, 2415, 2445, 2730, 2990, 3220, 3260, 3423, 3588, 3749, 4186, 4238, 4485, 4564, 4830, 4890, 5460, 5705, 5980, 6279, 6357, 6846, 7498, 8372, 8476, 8970, 9660, 9780, 10465, 10595, 11247, 11410, 12558, 12714, 13692, 14833, 14996, 17115, 17940, 18745, 20930, 21190, 22494, 22820, 25116, 25428, 26243, 29666, 31395, 31785, 34230, 37490, 41860, 42380, 44499, 44988, 48737, 52486, 56235, 59332, 62790, 63570, 68460, 74165, 74980, 78729, 88998, 97474, 104972, 112470, 125580, 127140, 131215, 146211, 148330, 157458, 177996, 194948, 222495, 224940, 243685, 262430, 292422, 296660, 314916, 341159, 393645, 444990, 487370, 524860, 584844, 682318, 731055, 787290, 889980, 974740, 1023477, 1364636, 1462110, 1574580, 1705795, 2046954, 2924220, 3411590, 4093908, 5117385, 6823180, 10234770, 20469540]

約数ペア:

[(1, 20469540), (2, 10234770), (3, 6823180), (4, 5117385), (5, 4093908), (6, 3411590), (7, 2924220), (10, 2046954), (12, 1705795), (13, 1574580), (14, 1462110), (15, 1364636), (20, 1023477), (21, 974740), (23, 889980), (26, 787290), (28, 731055), (30, 682318), (35, 584844), (39, 524860), (42, 487370), (46, 444990), (52, 393645), (60, 341159), (65, 314916), (69, 296660), (70, 292422), (78, 262430), (84, 243685), (91, 224940), (92, 222495), (105, 194948), (115, 177996), (130, 157458), (138, 148330), (140, 146211), (156, 131215), (161, 127140), (163, 125580), (182, 112470), (195, 104972), (210, 97474), (230, 88998), (260, 78729), (273, 74980), (276, 74165), (299, 68460), (322, 63570), (326, 62790), (345, 59332), (364, 56235), (390, 52486), (420, 48737), (455, 44988), (460, 44499), (483, 42380), (489, 41860), (546, 37490), (598, 34230), (644, 31785), (652, 31395), (690, 29666), (780, 26243), (805, 25428), (815, 25116), (897, 22820), (910, 22494), (966, 21190), (978, 20930), (1092, 18745), (1141, 17940), (1196, 17115), (1365, 14996), (1380, 14833), (1495, 13692), (1610, 12714), (1630, 12558), (1794, 11410), (1820, 11247), (1932, 10595), (1956, 10465), (2093, 9780), (2119, 9660), (2282, 8970), (2415, 8476), (2445, 8372), (2730, 7498), (2990, 6846), (3220, 6357), (3260, 6279), (3423, 5980), (3588, 5705), (3749, 5460), (4186, 4890), (4238, 4830), (4485, 4564)]