434980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 1128960

約数和(自身を除く): 693980

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 239, 260, 364, 455, 478, 910, 956, 1195, 1673, 1820, 2390, 3107, 3346, 4780, 6214, 6692, 8365, 12428, 15535, 16730, 21749, 31070, 33460, 43498, 62140, 86996, 108745, 217490, 434980]

約数ペア:

[(1, 434980), (2, 217490), (4, 108745), (5, 86996), (7, 62140), (10, 43498), (13, 33460), (14, 31070), (20, 21749), (26, 16730), (28, 15535), (35, 12428), (52, 8365), (65, 6692), (70, 6214), (91, 4780), (130, 3346), (140, 3107), (182, 2390), (239, 1820), (260, 1673), (364, 1195), (455, 956), (478, 910)]