205517910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:334

約数の個数: 128

約数和(自身を含む): 557383680

約数和(自身を除く): 351865770

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 31, 39, 62, 65, 78, 89, 93, 130, 155, 178, 186, 191, 195, 267, 310, 382, 390, 403, 445, 465, 534, 573, 806, 890, 930, 955, 1146, 1157, 1209, 1335, 1910, 2015, 2314, 2418, 2483, 2670, 2759, 2865, 3471, 4030, 4966, 5518, 5730, 5785, 5921, 6045, 6942, 7449, 8277, 11570, 11842, 12090, 12415, 13795, 14898, 16554, 16999, 17355, 17763, 24830, 27590, 29605, 33998, 34710, 35526, 35867, 37245, 41385, 50997, 59210, 71734, 74490, 76973, 82770, 84995, 88815, 101994, 107601, 153946, 169990, 177630, 179335, 215202, 220987, 230919, 254985, 358670, 384865, 441974, 461838, 509970, 526969, 538005, 662961, 769730, 1053938, 1076010, 1104935, 1154595, 1325922, 1580907, 2209870, 2309190, 2634845, 3161814, 3314805, 5269690, 6629610, 6850597, 7904535, 13701194, 15809070, 20551791, 34252985, 41103582, 68505970, 102758955, 205517910]

約数ペア:

[(1, 205517910), (2, 102758955), (3, 68505970), (5, 41103582), (6, 34252985), (10, 20551791), (13, 15809070), (15, 13701194), (26, 7904535), (30, 6850597), (31, 6629610), (39, 5269690), (62, 3314805), (65, 3161814), (78, 2634845), (89, 2309190), (93, 2209870), (130, 1580907), (155, 1325922), (178, 1154595), (186, 1104935), (191, 1076010), (195, 1053938), (267, 769730), (310, 662961), (382, 538005), (390, 526969), (403, 509970), (445, 461838), (465, 441974), (534, 384865), (573, 358670), (806, 254985), (890, 230919), (930, 220987), (955, 215202), (1146, 179335), (1157, 177630), (1209, 169990), (1335, 153946), (1910, 107601), (2015, 101994), (2314, 88815), (2418, 84995), (2483, 82770), (2670, 76973), (2759, 74490), (2865, 71734), (3471, 59210), (4030, 50997), (4966, 41385), (5518, 37245), (5730, 35867), (5785, 35526), (5921, 34710), (6045, 33998), (6942, 29605), (7449, 27590), (8277, 24830), (11570, 17763), (11842, 17355), (12090, 16999), (12415, 16554), (13795, 14898)]