28101255

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1$

素因数の和:225

約数の個数: 96

約数和(自身を含む): 59984064

約数和(自身を除く): 31882809

約数列:

[1, 3, 5, 7, 13, 15, 17, 21, 35, 39, 49, 51, 65, 85, 91, 105, 119, 147, 173, 195, 221, 245, 255, 273, 357, 455, 519, 595, 637, 663, 735, 833, 865, 1105, 1211, 1365, 1547, 1785, 1911, 2249, 2499, 2595, 2941, 3185, 3315, 3633, 4165, 4641, 6055, 6747, 7735, 8477, 8823, 9555, 10829, 11245, 12495, 14705, 15743, 18165, 20587, 23205, 25431, 32487, 33735, 38233, 42385, 44115, 47229, 54145, 61761, 78715, 102935, 110201, 114699, 127155, 144109, 162435, 191165, 236145, 267631, 308805, 330603, 432327, 551005, 573495, 720545, 802893, 1338155, 1653015, 1873417, 2161635, 4014465, 5620251, 9367085, 28101255]

約数ペア:

[(1, 28101255), (3, 9367085), (5, 5620251), (7, 4014465), (13, 2161635), (15, 1873417), (17, 1653015), (21, 1338155), (35, 802893), (39, 720545), (49, 573495), (51, 551005), (65, 432327), (85, 330603), (91, 308805), (105, 267631), (119, 236145), (147, 191165), (173, 162435), (195, 144109), (221, 127155), (245, 114699), (255, 110201), (273, 102935), (357, 78715), (455, 61761), (519, 54145), (595, 47229), (637, 44115), (663, 42385), (735, 38233), (833, 33735), (865, 32487), (1105, 25431), (1211, 23205), (1365, 20587), (1547, 18165), (1785, 15743), (1911, 14705), (2249, 12495), (2499, 11245), (2595, 10829), (2941, 9555), (3185, 8823), (3315, 8477), (3633, 7735), (4165, 6747), (4641, 6055)]