209820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 635040

約数和(自身を除く): 425220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 269, 390, 538, 780, 807, 1076, 1345, 1614, 2690, 3228, 3497, 4035, 5380, 6994, 8070, 10491, 13988, 16140, 17485, 20982, 34970, 41964, 52455, 69940, 104910, 209820]

約数ペア:

[(1, 209820), (2, 104910), (3, 69940), (4, 52455), (5, 41964), (6, 34970), (10, 20982), (12, 17485), (13, 16140), (15, 13988), (20, 10491), (26, 8070), (30, 6994), (39, 5380), (52, 4035), (60, 3497), (65, 3228), (78, 2690), (130, 1614), (156, 1345), (195, 1076), (260, 807), (269, 780), (390, 538)]