278323175

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 384246240

約数和(自身を除く): 105923065

約数列:

[1, 5, 13, 25, 61, 65, 101, 139, 305, 325, 505, 695, 793, 1313, 1525, 1807, 2525, 3475, 3965, 6161, 6565, 8479, 9035, 14039, 19825, 30805, 32825, 42395, 45175, 70195, 80093, 110227, 154025, 182507, 211975, 350975, 400465, 551135, 856379, 912535, 2002325, 2755675, 4281895, 4562675, 11132927, 21409475, 55664635, 278323175]

約数ペア:

[(1, 278323175), (5, 55664635), (13, 21409475), (25, 11132927), (61, 4562675), (65, 4281895), (101, 2755675), (139, 2002325), (305, 912535), (325, 856379), (505, 551135), (695, 400465), (793, 350975), (1313, 211975), (1525, 182507), (1807, 154025), (2525, 110227), (3475, 80093), (3965, 70195), (6161, 45175), (6565, 42395), (8479, 32825), (9035, 30805), (14039, 19825)]