20161931060

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{1699}}^1$

素因数の和:1977

約数の個数: 96

約数和(自身を含む): 43984684800

約数和(自身を除く): 23822753740

約数列:

[1, 2, 4, 5, 10, 20, 61, 71, 122, 137, 142, 244, 274, 284, 305, 355, 548, 610, 685, 710, 1220, 1370, 1420, 1699, 2740, 3398, 4331, 6796, 8357, 8495, 8662, 9727, 16714, 16990, 17324, 19454, 21655, 33428, 33980, 38908, 41785, 43310, 48635, 83570, 86620, 97270, 103639, 120629, 167140, 194540, 207278, 232763, 241258, 414556, 465526, 482516, 518195, 593347, 603145, 931052, 1036390, 1163815, 1186694, 1206290, 2072780, 2327630, 2373388, 2412580, 2966735, 4655260, 5933470, 7358369, 11866940, 14198543, 14716738, 16526173, 28397086, 29433476, 33052346, 36791845, 56794172, 66104692, 70992715, 73583690, 82630865, 141985430, 147167380, 165261730, 283970860, 330523460, 1008096553, 2016193106, 4032386212, 5040482765, 10080965530, 20161931060]

約数ペア:

[(1, 20161931060), (2, 10080965530), (4, 5040482765), (5, 4032386212), (10, 2016193106), (20, 1008096553), (61, 330523460), (71, 283970860), (122, 165261730), (137, 147167380), (142, 141985430), (244, 82630865), (274, 73583690), (284, 70992715), (305, 66104692), (355, 56794172), (548, 36791845), (610, 33052346), (685, 29433476), (710, 28397086), (1220, 16526173), (1370, 14716738), (1420, 14198543), (1699, 11866940), (2740, 7358369), (3398, 5933470), (4331, 4655260), (6796, 2966735), (8357, 2412580), (8495, 2373388), (8662, 2327630), (9727, 2072780), (16714, 1206290), (16990, 1186694), (17324, 1163815), (19454, 1036390), (21655, 931052), (33428, 603145), (33980, 593347), (38908, 518195), (41785, 482516), (43310, 465526), (48635, 414556), (83570, 241258), (86620, 232763), (97270, 207278), (103639, 194540), (120629, 167140)]