25498980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{641}}^1$

素因数の和:686

約数の個数: 144

約数和(自身を含む): 88334064

約数和(自身を除く): 62835084

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 306, 340, 390, 442, 468, 510, 585, 612, 641, 663, 765, 780, 884, 1020, 1105, 1170, 1282, 1326, 1530, 1923, 1989, 2210, 2340, 2564, 2652, 3060, 3205, 3315, 3846, 3978, 4420, 5769, 6410, 6630, 7692, 7956, 8333, 9615, 9945, 10897, 11538, 12820, 13260, 16666, 19230, 19890, 21794, 23076, 24999, 28845, 32691, 33332, 38460, 39780, 41665, 43588, 49998, 54485, 57690, 65382, 74997, 83330, 98073, 99996, 108970, 115380, 124995, 130764, 141661, 149994, 163455, 166660, 196146, 217940, 249990, 283322, 299988, 326910, 374985, 392292, 424983, 490365, 499980, 566644, 653820, 708305, 749970, 849966, 980730, 1274949, 1416610, 1499940, 1699932, 1961460, 2124915, 2549898, 2833220, 4249830, 5099796, 6374745, 8499660, 12749490, 25498980]

約数ペア:

[(1, 25498980), (2, 12749490), (3, 8499660), (4, 6374745), (5, 5099796), (6, 4249830), (9, 2833220), (10, 2549898), (12, 2124915), (13, 1961460), (15, 1699932), (17, 1499940), (18, 1416610), (20, 1274949), (26, 980730), (30, 849966), (34, 749970), (36, 708305), (39, 653820), (45, 566644), (51, 499980), (52, 490365), (60, 424983), (65, 392292), (68, 374985), (78, 326910), (85, 299988), (90, 283322), (102, 249990), (117, 217940), (130, 196146), (153, 166660), (156, 163455), (170, 149994), (180, 141661), (195, 130764), (204, 124995), (221, 115380), (234, 108970), (255, 99996), (260, 98073), (306, 83330), (340, 74997), (390, 65382), (442, 57690), (468, 54485), (510, 49998), (585, 43588), (612, 41665), (641, 39780), (663, 38460), (765, 33332), (780, 32691), (884, 28845), (1020, 24999), (1105, 23076), (1170, 21794), (1282, 19890), (1326, 19230), (1530, 16666), (1923, 13260), (1989, 12820), (2210, 11538), (2340, 10897), (2564, 9945), (2652, 9615), (3060, 8333), (3205, 7956), (3315, 7692), (3846, 6630), (3978, 6410), (4420, 5769)]