78536220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{26713}}^1$

素因数の和:26739

約数の個数: 72

約数和(自身を含む): 255813264

約数和(自身を除く): 177277044

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 26713, 53426, 80139, 106852, 133565, 160278, 186991, 267130, 320556, 373982, 400695, 534260, 560973, 747964, 801390, 934955, 1121946, 1308937, 1602780, 1869910, 2243892, 2617874, 2804865, 3739820, 3926811, 5235748, 5609730, 6544685, 7853622, 11219460, 13089370, 15707244, 19634055, 26178740, 39268110, 78536220]

約数ペア:

[(1, 78536220), (2, 39268110), (3, 26178740), (4, 19634055), (5, 15707244), (6, 13089370), (7, 11219460), (10, 7853622), (12, 6544685), (14, 5609730), (15, 5235748), (20, 3926811), (21, 3739820), (28, 2804865), (30, 2617874), (35, 2243892), (42, 1869910), (49, 1602780), (60, 1308937), (70, 1121946), (84, 934955), (98, 801390), (105, 747964), (140, 560973), (147, 534260), (196, 400695), (210, 373982), (245, 320556), (294, 267130), (420, 186991), (490, 160278), (588, 133565), (735, 106852), (980, 80139), (1470, 53426), (2940, 26713)]