278305980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{11863}}^1$

素因数の和:11915

約数の個数: 96

約数和(自身を含む): 861041664

約数和(自身を除く): 582735684

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 23, 30, 34, 46, 51, 60, 68, 69, 85, 92, 102, 115, 138, 170, 204, 230, 255, 276, 340, 345, 391, 460, 510, 690, 782, 1020, 1173, 1380, 1564, 1955, 2346, 3910, 4692, 5865, 7820, 11730, 11863, 23460, 23726, 35589, 47452, 59315, 71178, 118630, 142356, 177945, 201671, 237260, 272849, 355890, 403342, 545698, 605013, 711780, 806684, 818547, 1008355, 1091396, 1210026, 1364245, 1637094, 2016710, 2420052, 2728490, 3025065, 3274188, 4033420, 4092735, 4638433, 5456980, 6050130, 8185470, 9276866, 12100260, 13915299, 16370940, 18553732, 23192165, 27830598, 46384330, 55661196, 69576495, 92768660, 139152990, 278305980]

約数ペア:

[(1, 278305980), (2, 139152990), (3, 92768660), (4, 69576495), (5, 55661196), (6, 46384330), (10, 27830598), (12, 23192165), (15, 18553732), (17, 16370940), (20, 13915299), (23, 12100260), (30, 9276866), (34, 8185470), (46, 6050130), (51, 5456980), (60, 4638433), (68, 4092735), (69, 4033420), (85, 3274188), (92, 3025065), (102, 2728490), (115, 2420052), (138, 2016710), (170, 1637094), (204, 1364245), (230, 1210026), (255, 1091396), (276, 1008355), (340, 818547), (345, 806684), (391, 711780), (460, 605013), (510, 545698), (690, 403342), (782, 355890), (1020, 272849), (1173, 237260), (1380, 201671), (1564, 177945), (1955, 142356), (2346, 118630), (3910, 71178), (4692, 59315), (5865, 47452), (7820, 35589), (11730, 23726), (11863, 23460)]